Zhea Erose - Spiritualistica [just intonation]

This is a mostly improvised piece that came about from inspiration from 12 notes tuned to frequency ratios: 22:23:25:26:28:30:31:33:35:37:39:42:44. The 22:30 (11:15) is a superfourth rarely heard in Western music. It's one of my favorite intervals. I felt like exploring familiar gestures of romantic, classical, and jazz aesthetics but sent through the deforming filter of the undecimal colors. This is another example of my approach towards tuning using prime harmonic families and wrapping them around a pre-image (in this case 12edo). I call this "neji" -- near equal just intonation. This particular neji is actually not very near equal which is why it has such distinct color. It provides the befits of familiarity and freedom of transposition that a linear temperament would provide while allowing for unique harmonic colors and diverse key qualities. Undecimal [12] with superfourth 22:23:25:26:28:30:31:33:35:37:39:42:44 0: 1/1 0.000000 unison, perfect prime 1: 23/22 76.956405 undecimal m2 2: 25/22 221.309485 undecimal acute M2 3: 13/11 289.209719 undecimal m3 4: 14/11 417.507964 undecimal M3 5: 15/11 536.950772 undecimal Super 4th 6: 31/22 593.717630 undecimal Tritone 7: 3/2 701.955001 perfect fifth 8: 35/22 803.821678 undecimal m6 9: 37/22 900.026096 undecimal M6 10: 39/22 991.164720 undecimal m7 11: 21/11 1119.462965 undecimal M7 12: 2/1 1200.000000 octave It's quite similar to 12edo in many regards but the big outlier is the 5th step 11:15 -- The undecimal superfourth. This deeply impacts the way the scale plays.