(Thanks to someone (I forgot the name of) who posted this most appropriate graphic.)
All of the pieces below were performed on a Fender Mustang / Roland GR-20 using Fractal Tune Smithy to retune the midi data which was sent back to the GR-20 and for the first piece presented here used to drive percussion and software synthesizers.
Here is a more detailed description of how the data flowed through the equipment:
Each piece was performed on a Fender Mustang / Roland GR-20 in “local off mode”(GR-20 is a computerized guitar to midi-interface and synthesizer plus DSP) going to a M-Audio fast track both midi and audio sent to an HP quad core computer. The midi data from the fast track went to Fractal Tune Smithy running in the background to retune the midi data on the fly with multichannel pitch bend data which sent to LoopBe1 to Sonar X1 to be recorded and drive the software synthesizers (if needed) and sent back to the GR-20 to generate audio with its synthesizer. Then the GR-20 audio was captured by the M-Audio fast track and recorded in Sonar X1.
In Erv’s 22 tone Scale for Rod Poole (this is not meant to be pretty.) The 22 note JI tuning is below the music list.
For Two French Horns in 13 edo – the piece concentrates on the melodic aspects of 13 notes per octave mostly. Tuning in cents below the music list.
Cheesy voices in 13 edo. I found that certain timbres can help my ear acclimate to 13 note per octave rather quickly. 13 started to feel rather normal after a while. Tuning in cents below the music list.
7:9:11:13 vibes – a piece in higher prime limit Just Intonation. A bit more concentration on harmony here. Tuning is the last one below this list.
I believe Ron Sword posted this Erv Wilson tuning on the Facebook Xenharmonic Alliance – thanks!
Erv Wilson’s 22-tone Scale for Rod Poole
7 9 11 13