Hypsibius is going to be a music tracker with pluggable notions of tuning and temperament, which will permit historical tunings such as just intonation or quarter-comma meantone, microtonal tunings such as nineteen equal temperament or fifty-three tone equal temperament, and even non-octave-repeating tunings like the Bohlen-Pierce scale or Wendy Carlos' Alpha and Beta scales.

This is in a very early state, but the plan is to build the GUI with brick and do the sounds with csound. Some early scale files (which will define the scales used by Hypsibius) can be found in the data/scales directory.