“XronoMorph is a free OS X and Windows app for creating multilayered rhythmic and melodic loops (hockets). Each rhythmic layer is visualized as a polygon inscribed in a circle, and each polygon can be constructed according to two different mathematical principles: perfect balance and well-formedness (aka MOS). These principles generalize polyrhythms, additive, and Euclidean rhythms. Furthermore, rhythms can be smoothly morphed between, and irrational rhythms with no regular pulse can also be easily constructed.
XronoMorph subsumes the earlier MeanTimes app described in Milne, A. J. and Dean, R. T. (2016).
Each polygon can play an independent sound, and XronoMorph comes with a useful selection of samples to play the rhythms. Alternatively, you can load your own VST or AU plugins, or send MIDI to an external software or hardware synth. The rhythmic loops can be saved as presets within XronoMorph; they can also be saved as Scala scale tuning files, which means XronoMorph can be used as a tool for designing well-formed (MOS) and perfectly balanced microtonal scales.
XronoMorph is a portable standalone application distributed in a zip file. No installation is required—when you have downloaded the file, unzip it and double click to run.
On OS X, the legacy version of Java 6 must be installed, which can be downloaded from https://support.apple.com/kb/DL1572?locale=en_US.
On OS X, on first run, you may need to right click the app and select ‘Open’. If you get a message similar to ‘”XronoMorph” is damaged and can’t be opened …’, you will need to adjust OS X’s security settings. Go to System Preferences -> Security & Privacy and under “Allow apps downloaded from:” check “Anywhere”.”
Source : dynamictonality.com