Monday, November 29, 2004

Podcast1024: Boogie Pie by Aaron Krister Johnson

Aaron wrote to describe this piece: "You could say that it uses a 12 of 23-tet scale that Paul Erlich calls 'ripple', and that it is modelled on Conlon Nancarrow's player piano music."

The piece was generated from a MIDI file on his Korg X5DR. 23-tet means that the scale is equally divided into 23 steps, much like the 12-tet scale is divided into 12 steps. This means that there are very notes in common between 12-tet and 23-tet. They are as different as you can get, I suppose. Aaron picked 12 of these tones to use in his piece, and went to work composing. This is the result.

More information about Paul Erlich scale systems can be found here.

If you want to hear this podcast directly, click here to listen. Or drag the Podcast logo: this RSS feed to your iPodder or Doppler download window.

Wednesday, November 24, 2004

Podcast1024: Sandspice by Jonathan Szanto

Of the piece SandSpice, Jon writes:


"Part of the fun of microtonality right now is the proliferation of tools, at least if one works in the virtual world. "Sandspice" is a little improvisation I did with a recent softsynth that utilizes samples of real-world instruments, combined with the ability to use non-12 tunings. In this case it is the sound of the oud, an Arabic lute (an tuned in one of the traditional Arabic modes), as well as a drone. It is paired with my love of field recordings, so the imaginary picture is an oud player sitting at the water's edge, riffing to the accompaniment of a bagpipe drone. As if that were possible."

Jon Szanto worked with Harry Partch during the latter part of his life. His primary instrument was the Boo, the bamboo marimba, but he also played the Mbira Bass Dyad and Ektara. He now maintains the excellent collection of material on Harry Partch, Corporeal Meadows. There you can find samples of the Partch instruments, pictures, scores, and marvelous memorabilia.

If you want to hear this podcast directly, click here to listen. Or drag the Podcast logo: this RSS feed to your iPodder or Doppler download window.

Tuesday, November 23, 2004

Podcast1024: Drums and Different Canons #1 by John ffitch

John ffitch is well known to the Csound community for his tireless work enhancing the product over the dozen or so year's. His bio describes him as follows:

His entire professional career has been as an academic mathematician/computer scientist, and for most of that time he has been in Mathematical Sciences at Bath, where he holds the Chair of Software Engineering, a subject about which he knows little. His main interests have been in Relativity, Planetary Astronomy, Computer Algebra and LISP, but he has been known to dabble widely, for example in tank warfare, Latin poetry, Arabic linguistics, compilers, and company management, all with some lack of success. Strangely enough he won the Adams Prize for Mathematics a quarter of a century ago, but not much since. Hobbies include maintaining Csound, supervising research students, receiving and losing e-mail, and complaining about the Web.
Of the music we are about to hear, he says:
The initial idea from which this work spread was a short sequence of notes taken from a mapping of the Henon (chaos) differential equation onto pitch and duration. Certain themes in it suggested to me a piece, which developed into the current manifestation, although it has changed a great deal. The title is an echo of the well known quotation from Thoreau and the repetitive canon like structure of this differential equation. The work is in three movements, the second and third played without a break, with an introductory and closing fanfare. The first movement, the longest, is subtitled Henon, and is a slow statement of the main musical material, derived from the Henon equation. It is played mainly on a marimba-like instrument, with injections from other timbres, triggered by certain events, and taking material from the Torus chaos function. An arbitrary limit of 500 events was chosen, the 500th event being marked by a different sound. The second movement was conceived on a mountain in Austria called Gruneberg, above the town of Gmunden, which I climbed on a rainy day in September, while listening to some Xenakis on a walkman. The score is actually the same events as the first movement, but the instruments are drums, played at about twice the speed, with much stereo modifications, and there are other unstable motions of timbre. The same score is used for the last movement, but the introduction of glissandi changes the mood to a distant memory of Gruneberg. The inspiration was a distant view of hills, both from Gruneberg and from my house. It is quieter, and I hope more reflective. For the technically minded, the pitches are all taken from an 100ET scale. The piece was realised in a mixture of ANSI C and CSound. The work took about 15 months to write, and lasts about 7 minutes.
For more information on the piece, visit his description page here.

If you want to hear this podcast directly, click here to listen. Or drag the Podcast logo: this RSS feed to your iPodder or Doppler download window.

Monday, November 22, 2004

Podcast1024: Ostinato by Gene Ward Smith

This is the most accesible work I know by a marvelous tuning theoretician named Gene Ward Smith. Gene is full of terrific ideas about tuning systems, and has an encyclodedic knowledge of the area. I picked a very single narrow range of microtonal theory, the Partch tonality diamond, for my exploration. Gene has been able to make innovations in dozens of areas. Take a look at his theory web page to get an idea what he is up to. He has information there about such areas as:

The Wedge Product
The Wedgie
The Brat
Bosanquet Lattices
TOP and Tenney Space
The seven limit lattices
Hahn Distance
Comma Sequences
I don't have a clue what they all mean, but just sit back end let this set of changes wash over you. It all makes sense after a while.

If you want to hear this podcast directly, click here to listen. Or drag the Podcast logo: this RSS feed to your iPodder or Doppler download window.

Mediaburn Podstation 2408

Gary Santoro runs the Mediaburn weblog, which discusses all things digital on the web. He's turned to the GigaDial.net web site to post his radio links, and darned if it didn't include one of the Podcast1024 pieces, the Mirror Walk by Prent Rodgers. Thanks for the attention. GigaDial is a way to share your favorite podcast episodes with others. Gary also picked one from the BBC on the Higgs Boson, and one from his own Mediaburn Radio Weblog. See the entry at Mediaburn Podstation 2408.

GigaDial elevator pitch:

GigaDial.net is a new approach to radio programming. You can use it to create and subscribe to podcast-powered stations composed of individual episodes from your favorite podcasters. To subscribe, browse the list of recently updated stations below, or the list of all stations, and then point your podcatcher at the station feed, linked from the XML button on each station's page.

Podcast1024: Foum by Jacob Barton

Everyone in the Making Microtonal Music Yahoo Groups has gone wild over a new piece by Jacob Barton, Foum, or Xenharmonic Variations on a Theme by Mozart (jacob barton, microtonal player piano).

Well at least three people said great things about it. And in this business, that's a horde! I heard it and totally flipped for it. Here is Jacob's description of Foum from his Soundclick page Fun With Xenharmonicity:

Seven variations. On Mozart.
That's right.
And they felt so goooood.

And this from his post to Making Microtonal Music at Yahoo Groups:

This just out:

Seven variations. Each in a different root of two. Something for everyone.
...
Also this notion of an innate "mood" supplied by the tuning - any thoughts there? Also, what's your favorite moment?
It starts out like a regular Mozart piano piece, and then veers off to another planet. If you are driving while you are listening, I recommend you pull over now.

If you want to hear the podcast directly, click here to listen drag the Podcast logo here: this RSS feed to your iPodder or Doppler download window.

Saturday, November 20, 2004

We're Famous!

kinrowan has graciously written up a review of Podcast1024 in his "New New Podcast Review" web page and podcast. What a trip! If I knew what a track-back was, and if Blogger supported them I'd be doing it. knrowan says:
I'm inclined to agree with Prent that anyone interested in music at all should have a little of this in their daily musical diet. In fact, it would be wonderful if Prent published this on an absolutely daily basis, but that's a pretty tall order. It would also be nice if Prent would give a little larger tidbit of information in his intro; I would be very happy to have Prent tell us a little about microtonal music in general in every 'cast, to help those of us who don't quite get it yet (OK, to help me) - he does give some details in most 'casts, but sometimes they assume more of a basis in the ideas behind microtonal music than his potential podience is likely to have.

Thanks for the plug! We're up to 50 RSS feeds a day now. Any more and I'd blush.

Podcast1024: Stolen Stars by Kraig Grady

Today's music is an excerpt from an acoustic performance of Kraig Grady's Stolen Stars. Kraig is the North American ambassador from the nation of Anaphoria. He is an instrument builder, composer, as well as one of the top political officials of this island nation. Check out the flag of Anaphoria on the right. More stories of Anaphorian lore can be found on Kraig's web page.

I like the music. Sit back and relax. More is on the way as soon as Kraig can send me a CD of the rest of the pieces. Kraig and I both worked with Erv Wilson in the 70's to learn about microtonality.

If you want to hear the podcast directly, click here to listen drag the Podcast logo here: this RSS feed to your iPodder or Doppler download window.


Thursday, November 18, 2004

Podcast1024: Arbor Low by Dante Rosati

Today's music is by Dante Rosati, called Arbor Low. The piece is written for 21 tone just intonation guitar, and performed by the composer. Arbor Low is the name of a prehistoric henge he visited in Derbyshire, England. For more information on the tuning of the guitar, see Dante's guitar web page.

If you want to hear the podcast directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Wednesday, November 17, 2004

Houston Chronical writes about podcasting - Mentions Adam Curry

Here's a good laymen's explanation of what Podcasting is:
HoustonChronicle.com - Computing

Monday, November 15, 2004

Podcast1024: Preludes 1-3 for 19 tone piano by Jeff Harrington

This is a performance of the first through third of his Preludes for 19 Tone Piano by Jeff Harrington. Notice the terrific power of the piano to focus the ear on the harmonic material available in 19 tone temperment. You can see scores and much more music by Jeff on his web page. Jeff also has a page that describes the techniques he used to create the final wave file versions using Timidity and specialized sound fonts.

If you want to hear the podcast directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Podcast1024: Mirror Walk by Prent Rodgers

This is a piece I wrote for a combination of instruments. They include cello, violins, double bass, tuba, contrabassoon, oboe, flutes, finger piano, harp, vibraphone, french horn and many different trombones. All are subject to up and down sampling to create tiny versions of the instruments. A tenor trombone, downsampled by a few notes and then taken up an octave sounds like a sopranino trumpet. All instruments can glissando, including the harp, finger piano, oboe, flute, and cello.

There is a great deal of indeterminacy in my music. In this piece, each instrument can sometimes choose from many different alternative measures at any one time. At other times, they are more constrained. The trombone, oboe, and finger piano accompaniments had many choices, but are still constrained to a short list. Later in the song they could chose from many more alternatives. Some interesting parts showed up just because it was their time to be heard. I especially like the oom-pah-pah part at 2:45, following some trombone glissandi. I like to think of it as an improvisation, subject to control. It was created using Csound.

If you want to hear the podcast directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

The New, New Podcast Review: Dave Winer: Podsafe Music

Please note that all music posted here 100% Podsafe by Dave Winer's definition. See the New, New Podcast Review and Dave's Scripting news. I've obtained all the composers permission to podcast all the material.

Releasing RadioPod from Ben Hammersley's Dangerous Precedent

This is news to me. A way to record streaming radio stations, convert to MP3, and provide an RSS feed for Podcatching. Looks like it needs a Unix or Linux server, or a version of Perl though.

Releasing RadioPod from Ben Hammersley's Dangerous Precedent

Sunday, November 14, 2004

Podcast1024: The Stuffed Ones by Christopher Bailey

This is a suite of four pieces for microtonal piano by Christopher Bailey. The Stuffed Ones a brief set of character pieces about his stuffed animals.


  1. Goopy, the impetuous, angry, volatile little doggie.
  2. Ellie, the lumbering elephant.
  3. Ziggy, floating, always floating . . . . .
  4. Towelbear, bouncing back and forth on his bow legs.

The pieces are in 11-tone equal temperment. Chris writes: "I don't really think of them as "piano" pieces, but rather has being written for my XV-3080 synth (there are definitely a lot of non-piano sounds!). The tool I used was MicroMidi". For more info, see his page.


If you want to hear the podcast directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Saturday, November 13, 2004

Podcast1024: Wasatch Front by Prent Rodgers

This is another piece by me, Prent Rodgers. It's called Wasatch Front, and it was written for microtonal woodwind quintet.


The piece makes extensive use of glissandi to move from one key to another in a chord progression derived from the Partch tonality diamond. The movement is enhanced by simulating the Doppler Effect with envelopes that make the sound seem to be moving toward or away from the listener. I try to link the pitch movement dictated by the Partch scale to the speed of movement through audio space. Much more information in the liner notes on my web page here.
If you want to hear the podcast directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Podcast1024: On the Sensations of Tone by Steven Yi

This is a piece by Steven Yi, a software developer from the San Francisco Bay area. Steven has created a terrific musical composition and sound development environment called Blue, which uses Csound as the sound generating element. He used Blue to create the piece we hear today, called On the Sensations of Tone. It was written for a performance in Athens, GA at the University of Georgia Alumni Electronic Concert on November 10th in the Dancz Center for New Music.
On the Sensations of Tone has a nice dreamy ambient quality, and shows some of the wonderful effects that are possible with Csound under the control of Blue.
If you want to hear the podcast directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Podcast1024: Square Trance by Churzkia Jrakavla

This podcast is some music that I found while searching through the collection of microtonal music put up on the web by Andrew Heathwaite. Andrew points to the intriguing band called "A Name Unlikely to Lead to a Record Deal", which is of course Churzkia Jrakavla.

The piece we will hear today is Square Trance, which combines my two favorite musical characteristics, microtonality and Csound. As Churzkia describes it in his note to me:

"Square Trance" mixes elements of a country hoedown and Trance music, yielding a sort of electronic square dance. It uses a versatile twelve-tone microtonal scale I discovered about ten years ago (more information on the scale). The piece modulates as it accelerates, triggering subtle coloristic shifts in the ear and mind of the listener. I composed this piece with Cakewalk and used Csound for engineering aspects (the MIDI file generated by Cakewalk functioned as my score).

If you want to hear the podcast directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Thursday, November 11, 2004

Podcast1024: Resolution in Blue by Prent Rodgers

Since I'm a composer too, it's only fair that I put some of my own music into a podcast. This piece is called Resolution in Blue, and it was written for microtonal slide piano.

Now, since there aren't any microtonal slide pianos available, I had to simulate one on the computer, using Csound. I started with a terrific piano sample set from the McGill University Master Samples library. Then using Csound, I applied function tables to slide the notes around. The slides are similar to the way a slide guitar plays, with a long slide from one note to another, and a vibrato when it reaches the new note. Much more detail on my liner notes page.

If you want to hear the podcast directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Podcast1024: Ripples by Carl McTague

Young composer and mathematician Carl McTague explores the interface between mathematics, music, and computation. He composed the experimental piece Ripples Through Pitch Space by releasing particles into a one-dimensional potential field. Actually, he simulated this within a computer by means of a discrete numerical integrator. He interpreted the particles’ positions as pitch, and their velocities as
rhythm; roughly speaking, the faster a particle moves, the more frequently its pitch is heard. Since the simulated space is continuous, or at least nearly so, many wonderful microtones emerge. Listen to how the tense, exotic sonorities relax onto more familiar, consonant ones, at least most of the time. For more detailed information, please read his online concert notes.

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Wednesday, November 10, 2004

Over the Rivers by Dan Stearns

This is a piece by Dan Stearns in 11-tone to the octave equal temperment.

Here is what Dan has to say:

"Over the Rivers is a piece I wrote as a personal homage to Charles Ives for the occasion of the 50th anniversary of his passing. Unfortunately it took a lot longer to complete than I hoped, over a year for two minutes of music, and the anniversary came and went. But I'm very happy with the piece and what's a date anyway; surely nothing in the larger scope of appreciating Ives' unique and timeless contributions!

Technically speaking, there's a lot going on in this piece, but I'd like to take the time to call attention to one aspect in particular. Over the Rivers is composed in 11-tone equal temperament. This tuning, and other tunings like it, are routinely mentioned by theorists as atonal or discordant tunings with little or no practical purpose. This is simply not the case,and I intentionally kept this piece on the threshold of tonality just to accentuate the unique beauty these "atonal" and "discordant" tunings can express if one takes the time to look..."

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Cinderella's Bad Magic by Kyle Gann

This is an excerpt from the opera by Kyle Gann called Cinderella's Bad Magic. Today I will play the music of Scene 5: It Never Really Snows Between Scenes Performed Kimberly Kahan, Helen Donaldson, Michael Callas, Kate Sullivan, David Garry, Patricia Spencer, Carmine Aufiero, Nicole Reisnour, Kyle Gann, Bernard Gann, and conducted by James Bagwell.

Kyle's program notes say:

"The music is in a pure tuning of extended just intonation, with 30 pitches to the octave. The harmonic structure of the piece follows the journey and the awakening - minor keys are constantly transforming into major keys, only to fall back into minor again. The work opens in an idyllic E-flat major which begins to dissolve in Scene 2: the moment Rip Van Winkle sings "One day I went to sleep and woke up," the music opens up into C major. Cumulative modulations continue through A, C#, A#, contrasting ever more distant keys which come more and more to exhibit quarter-tone relationships, fractures in the musical texture. The anxious awakening in Scene 8 is prelude to a kind of recapitulation in E-flat, but now with a fluid ability to run through all nine major and minor keys. The appearance of C double-sharp minor in the final chords signals that the journey is not over, but has just begun."

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Monday, November 08, 2004

Combination Study 1 by Dave Seidel

Over a bed of sruti-box-like drones, a slow chord sequence plays through twice, first in closed voicing, then in open voicing.

This piece was inspired by a section of David B. Doty’s excellent book The Just Intonation Primer. Chapter 2, “Acoustic and Psychoacoustic Background”, pages 17-19, discusses the phenomena of difference tones, summation tones (collectively referred to as “combination tones”) and the periodicity pitch. They describe pitches that are synthesized by our ears and/or by our higher-order neural processing in response to hearing a set of two or more simultaneous tones. These tones are not always perceivable by the listener, but are always present.

Visit Dave's web page for more information, including the Csound source code.

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Peer's Dream by Aaron Krister Johnson

This is a performance of a piece by Aaron Krister Johnson called Peer's Dream. It was written as incidental music for a performance in Chicago of Peer Gynt, for the section designed to show Peer sleeping, and the passing of time in a dream. It does a terrific job of capturing the feeling of mystery that surrounds the play. For more information on Aaron, please visit his web site.

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Local Variations by Bill Sethares

This performance is a piece by Bill Sethares. Bill is using a technique called Adaptive Tuning. More information on adaptive tuning can be found in the tuning dictionary of Joseph Monzo.

Here's how Joe explains Adaptive Tuning: "A form of temperament in which some algorithm is used which keeps the ratios of simultaneous sounds exactly in just-intonation, but uses non-JI melodic intervals to reduce the retuning motion and/or drift relative to a strict JI realization."

And it has a good beat. Bill's website has more information and much more music.

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Prelude #4 by Jeff Harington

Today's piece is by Jeff Harrington, called Prelude #4 for 19 tone piano. It's a short piece based on a blues progression and packed full of African influences. Jeff has more information on his web page, including the written score, at JeffHarrington.org. Jeff posts dozens of his recent work at the page, with commentary and explanations.

I'll be posting the other three Preludes for 19 tone equal over the next few weeks. Listen now to Prelude #4 by Jeff Harrington.

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Thursday, November 04, 2004

Four Ballet Dances by Rick McGowan - Part 1

This is the first section of a piece by Rick McGowan called Four Ballet Scenes. The piece is entirely in a 15-tone equal tuning. This yields a lot of very different melodic possibilities with some unusual chord structures as well. It is realized directly in the digital domain with a software synthesizer called Rhino, using my own patches. The percussion section consists mainly of sampled household objects. Each of the four movements is intended as a basis for abstract dance.

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Jacob Barton's Hyper-improvisation 3.3

This is music by Jacob Barton. Jacob has a page on SoundClick called "Fun with Xenharmonicity" which was pointed to by his post to the Yahoo Groups list called Make Micro Music.

The piece is his microtonal improvisation called Hyper-improvisation 3.3. I was instantly drawn to the choppy, semi-frantic style, and the challenging use of 15 equal tones to the octave. As most of you know, the normal scale uses 12. As good microtonalists know, there is whole world between the cracks of the 12 tone scale.

Listen to Jacob's Hyper-Improvisation 3.3
here or add this RSS feed to your iPodder or Doppler download window.

Threads by Richard Friedman

Today's music is by Richard Friedman, from his music to accompany THREADS, a piece for Kate Mitchell and Dancers. Richard's music is described on his blog . THREADS is in performance 11/12 and 13 in San Francisco. More about the performance can be found here. Click on 11/12 or 11/13 to see the performance information.

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

Monday, November 01, 2004

What we should do as Microtonalists to broaden our exposure

Microtonalists:

I've been exploring Podcasting. I think this may be a way for those of us in the Microtonal music world to jumpstart our exposure to more listeners. Podcasting is the process of making audio programs available for subscription. Using RSS enclosures, you imbed an MP3 file inside an RSS feed, and people can subscribe to the feed to pick up the day's broadcast and automatically download it to their iPod or MP3 player.

Using tools like iPodder for the Mac and Doppler for Windows, you can subscribe to feeds from a variety of sources, and the tools will automatically download new content to a folder on your computer, and then synch it up with a handheld MP3 player or iPod. The beauty of this form is that it is super easy to listen to music and radio programs on the go, in your car, while on a walk, waiting for the kids at soccer, whatever. A list of content to subscribe to is posted regularly on several web pages. I subscribe to a few daily broadcasts. The best ones are listed at the bottom of this note.

Webjay, which Jeff Harrington uses to assemble playlists, supports Podcasting. Just drag the "Podcast" link from the Webjay playlist to the Doppler window and all changes to the playlist will trigger an automatic download of the new songs. Some of radio stations make available content for subscription as well.

I've started a Podcast for microtonal music. Over some "background music" I talk about what the piece will consist of, and then play the music. The site looks like a regular blog, but with some magic in the background thanks to Feedburner, you can drop a link on iPodder or Doppler and subscribed to every post on the site. Every day a new fragment will appear on your iPod or MP3 player. To see the blog, try
http://podcast1024.blogspot.com. Or if you are ready for true podcasting, add the feed link http://feeds.feedburner.com/Podcast1024
to your RSS reader or iPodder.

Indiefeed, at http://blindingflashes.blogs.com/indie_feed/ accepts Podcasts and collects music from people who support the Creative Commons License. People who want to assemble Podcasts of their own, can grab a complete intro-voiceover-music-voiceover-outro, with 95% of the cast being music. Podcast producers then can pad their Podcast with music that explains itself. The person who runs the site would be willing to host a new category for Microtonal Music, if we can commit to a steady stream of posts.

If anyone is interested, I would be glad to add the intro-voiceover & -voiceover-outro to your music if you send me permission and a URL, and a short description of the music that I could read.

For more on Podcasting, see



If you already know how to receive podcasts, subscribe to these to get a feel for the style.


Prent Rodgers

Dry Hole Canyon Podcast

This is a podcast that includes an entire piece in the enclosure. Dry Hole Canyon for Woodwind Quintet is a piece I wrote and realized using Csound last month. If you subscribe to this podcast, you can download a short description of the song by the composer, and then listen to the piece at 64kbit/sec MP3.

If you want to hear it directly, click here to listen or add this RSS feed to your iPodder or Doppler download window.

What's the idea of Podcast 1024?

This is what the Podcast is about. Spend ten minutes a day composing, every day. Every 24 hours, 10 minutes. Podcast1024 is a place to share today's work. A fragment, an idea, an announcement of a completed piece. Here is where it comes out.

Prent Rodgers
Podcast1024 Moderator

Listen Here my podcast for the explanation.

Visit my web site

Listen to my music