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Podcast Bumper Music

Prent Rodgers

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Podcast Bumper Music
Podcast Bumper Music

Podcast Bumper Music

Prent Rodgers

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Followers
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Plays
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About Us

Microtonal Music is music using more than 12 tones per octave. I compose music using Csound and a preprocessor I wrote in Turbo Pascal. I post small updates as the compositions are being created, and a few final versions once I'm done. I strive towards music that could be played if we had the instruments capable of playing the notes. Think of it as "fake but accurate".

Latest Episodes

Csound is back on the Mainframe after a 40 year absence

Here's one that took a while to make. I was able to build Csound v5 under Linux on an IBM mainframe Integrated Facility for Linux (IFL), thanks to an IBM developer program. Csound is back on the mainframe after not seeing such an architecture for probably 40 years. It runs pretty fast, but that's not the reason to build it on the platform. I just wanted to understand the challenges of moving to the s390x architecture, since I sell mainframes for a living, and most of my customers have Linux today. Today's version of June Gloom was converted from my source code to Csound input on my PC under Free Pascal, shipped to the mainframe as drum12.csd, then processed by Csound on the mainframe to create a .wav file. I brought that back to my PC to create an MP3 file and posted here. Download or Play it here. Subscribe here:

-1 s2012 AUG 11
Comments
Csound is back on the Mainframe after a 40 year absence

June Gloom #20 - processed by Linux

Here's a version made on a Linux implementation on Amazon's Web Services. Now that my preprocessor has been ported to open source Free Pascal, it was a snap to compile it on an Ubuntu Linux instance. Csound only needed a simple install. It's my first try at Linux. Next stop: RedHat under z/VM on an IBM IFL at their developer sandbox. Unfortunately, there's no port of Free Pascal that supports the z architecture or instruction set, and I'll have to build Csound myself. I think the latter will be easier than the former. I can do the preprocessor work on my desktop and ship the Csound source to the cloud for processing. Download or Play it here. Subscribe here:

-1 s2012 AUG 2
Comments
June Gloom #20 - processed by Linux

June Gloom #14

Here is the last version of June Gloom I will post. Today's run through the algorithm is a milepost of sorts. I finally was able to generate the whole thing without having to run either the preprocessor or Csound in that dreadful XP box on my Windows 7 laptop. Today I finished the port of the preprocessor to Free Pascal from Turbo Pascal. Most of the problems along the way were due to failing to check for Nil pointers and out of bounds arrays. Apparently Turbo Pascal circa 1989 let me do some bad things. I fixed those and the program compiled. After earlier porting the Csound code to a version of Csound that runs in Windows 7, I'm now free of the XP box. Today's post is the result. Nothing is substantively different, except it's another round through the algorithm, so everything has changed. Download or Play it here. Subscribe here:

-1 s2012 JUL 22
Comments
June Gloom #14

June Gloom #11

This is another final version. The eleventh time through the track shows off the idea of several different instruments playing the melody, and each one can choose to trill, slide up, slide down, play only one note instead of all three, and many other variations. The conflict between the instruments makes for an interesting sound. Download or Play it here. Subscribe here:

-1 s2012 JUL 2
Comments
June Gloom #11

June Gloom #9

This is a final version of the piece I've been working on lately. As with several recent works, this one takes six notes at a time out of a 10-note scale based on the undertone series. Here is a small chart that shows the pitches and ratios used and the order of the changes. The accidentals are in the Sagittal font. The six notes chosen are two triads. The first one in the first row is a just B flat major, played at the same time as a just C minor. This is a very consonant combinations, almost too sweet. The instruments play a melody and chords based on those two triads. The rhythm is 9/8 then 4.5/8, which is what makes the tempo sort of bouncy. After playing in the first key (Bb major, C minor), it moves to the next one in the series, a just G minor combined with sort of an A flat neutral with a messed up 5th. It gets worse from there. Eventually it comes back to the beginning, and then repeats the cycle two more times. It's the same basic melody and harmony in each chord, but the ...

-1 s2012 JUN 30
Comments
June Gloom #9

June Gloom - more variety

This is a work in progress. Today I modified the amplitude, octaves, tempos, and added a cello and tuba to the mix. The point of my recent music is choosing from several six note combinations from a ten note undertone scale. Some are very easy on the ears, and some are challenging. See if you can tell which is which. Download or Play it here. Subscribe here:

-1 s2012 JUN 29
Comments
June Gloom - more variety

June Gloom - more keys

This is a work in progress. Noodling around with some different keys. Download or Play it here. Subscribe here:

-1 s2012 JUN 28
Comments
June Gloom - more keys

More June Gloom

This is a work in progress. Adding a few more options for the melody. Now he can either trill, slide up, slide down, or play stacatto. More to come. And a few more keys. Download or Play it here. Subscribe here:

-1 s2012 JUN 24
Comments
More June Gloom

Blue Sky/Black Crow

This is a work in progress. Today's installment includes many more types of chords. Very slippery notes. The chord changes are derived from the undertone scale I've been working with lately. Play it here or download this link Subscribe here:

-1 s2012 JUN 23
Comments
Blue Sky/Black Crow

Blue Sky/Black Crow #4

Play it here Here's a final version of the piece I've been working on lately. It's scored for bass finger piano and lots of Ernie Ball Super Slinky Guitar string samples. The tuning is taken from a mostly utonal scale, but only six notes at a time. Here's the 10 notes in the scale, from which six note modes are pulled. The numbers across the top are the scale degrees out of the 10 available (actually only 10 in this case), and the next row is the 72-EDO note numbers. And here are the six note chords that are used. The numbers to the left are the scale degrees out of the 10 available: Notice that some of the ratios are conventional just major and minor triads. Others are much more xenharmonic. The Bb major and C minor are in the former category, sounding very consonant and easy on the ears. The B neutral and C supermajor are more challenging. When they come around, you know that something unusual is at work. The piece steps through the chords in a progression twice, in the following ...

-1 s2012 JUN 23
Comments
Blue Sky/Black Crow #4

Latest Episodes

Csound is back on the Mainframe after a 40 year absence

Here's one that took a while to make. I was able to build Csound v5 under Linux on an IBM mainframe Integrated Facility for Linux (IFL), thanks to an IBM developer program. Csound is back on the mainframe after not seeing such an architecture for probably 40 years. It runs pretty fast, but that's not the reason to build it on the platform. I just wanted to understand the challenges of moving to the s390x architecture, since I sell mainframes for a living, and most of my customers have Linux today. Today's version of June Gloom was converted from my source code to Csound input on my PC under Free Pascal, shipped to the mainframe as drum12.csd, then processed by Csound on the mainframe to create a .wav file. I brought that back to my PC to create an MP3 file and posted here. Download or Play it here. Subscribe here:

-1 s2012 AUG 11
Comments
Csound is back on the Mainframe after a 40 year absence

June Gloom #20 - processed by Linux

Here's a version made on a Linux implementation on Amazon's Web Services. Now that my preprocessor has been ported to open source Free Pascal, it was a snap to compile it on an Ubuntu Linux instance. Csound only needed a simple install. It's my first try at Linux. Next stop: RedHat under z/VM on an IBM IFL at their developer sandbox. Unfortunately, there's no port of Free Pascal that supports the z architecture or instruction set, and I'll have to build Csound myself. I think the latter will be easier than the former. I can do the preprocessor work on my desktop and ship the Csound source to the cloud for processing. Download or Play it here. Subscribe here:

-1 s2012 AUG 2
Comments
June Gloom #20 - processed by Linux

June Gloom #14

Here is the last version of June Gloom I will post. Today's run through the algorithm is a milepost of sorts. I finally was able to generate the whole thing without having to run either the preprocessor or Csound in that dreadful XP box on my Windows 7 laptop. Today I finished the port of the preprocessor to Free Pascal from Turbo Pascal. Most of the problems along the way were due to failing to check for Nil pointers and out of bounds arrays. Apparently Turbo Pascal circa 1989 let me do some bad things. I fixed those and the program compiled. After earlier porting the Csound code to a version of Csound that runs in Windows 7, I'm now free of the XP box. Today's post is the result. Nothing is substantively different, except it's another round through the algorithm, so everything has changed. Download or Play it here. Subscribe here:

-1 s2012 JUL 22
Comments
June Gloom #14

June Gloom #11

This is another final version. The eleventh time through the track shows off the idea of several different instruments playing the melody, and each one can choose to trill, slide up, slide down, play only one note instead of all three, and many other variations. The conflict between the instruments makes for an interesting sound. Download or Play it here. Subscribe here:

-1 s2012 JUL 2
Comments
June Gloom #11

June Gloom #9

This is a final version of the piece I've been working on lately. As with several recent works, this one takes six notes at a time out of a 10-note scale based on the undertone series. Here is a small chart that shows the pitches and ratios used and the order of the changes. The accidentals are in the Sagittal font. The six notes chosen are two triads. The first one in the first row is a just B flat major, played at the same time as a just C minor. This is a very consonant combinations, almost too sweet. The instruments play a melody and chords based on those two triads. The rhythm is 9/8 then 4.5/8, which is what makes the tempo sort of bouncy. After playing in the first key (Bb major, C minor), it moves to the next one in the series, a just G minor combined with sort of an A flat neutral with a messed up 5th. It gets worse from there. Eventually it comes back to the beginning, and then repeats the cycle two more times. It's the same basic melody and harmony in each chord, but the ...

-1 s2012 JUN 30
Comments
June Gloom #9

June Gloom - more variety

This is a work in progress. Today I modified the amplitude, octaves, tempos, and added a cello and tuba to the mix. The point of my recent music is choosing from several six note combinations from a ten note undertone scale. Some are very easy on the ears, and some are challenging. See if you can tell which is which. Download or Play it here. Subscribe here:

-1 s2012 JUN 29
Comments
June Gloom - more variety

June Gloom - more keys

This is a work in progress. Noodling around with some different keys. Download or Play it here. Subscribe here:

-1 s2012 JUN 28
Comments
June Gloom - more keys

More June Gloom

This is a work in progress. Adding a few more options for the melody. Now he can either trill, slide up, slide down, or play stacatto. More to come. And a few more keys. Download or Play it here. Subscribe here:

-1 s2012 JUN 24
Comments
More June Gloom

Blue Sky/Black Crow

This is a work in progress. Today's installment includes many more types of chords. Very slippery notes. The chord changes are derived from the undertone scale I've been working with lately. Play it here or download this link Subscribe here:

-1 s2012 JUN 23
Comments
Blue Sky/Black Crow

Blue Sky/Black Crow #4

Play it here Here's a final version of the piece I've been working on lately. It's scored for bass finger piano and lots of Ernie Ball Super Slinky Guitar string samples. The tuning is taken from a mostly utonal scale, but only six notes at a time. Here's the 10 notes in the scale, from which six note modes are pulled. The numbers across the top are the scale degrees out of the 10 available (actually only 10 in this case), and the next row is the 72-EDO note numbers. And here are the six note chords that are used. The numbers to the left are the scale degrees out of the 10 available: Notice that some of the ratios are conventional just major and minor triads. Others are much more xenharmonic. The Bb major and C minor are in the former category, sounding very consonant and easy on the ears. The B neutral and C supermajor are more challenging. When they come around, you know that something unusual is at work. The piece steps through the chords in a progression twice, in the following ...

-1 s2012 JUN 23
Comments
Blue Sky/Black Crow #4