Hi,
I pushed an update to Github with the latest version of my FastLED based composition library which is used to render effects out of a libary of effects on a 2-dimensional LED-strip. Effects are controlled by a variety of parameters. The same or different effects can be drawn at the same time using channels, and channels can be at different position and sizes or being blended on top of each other to create new interesting effects.
Next step is to seperate the MIDI interface out of the library to make it fully generic. Right now it has a MIDI interface which is used to control the effect creation and change the parameters using a midi controller or midi sequencer which I use at home to sequence the behavior of my LED strip to music.