Midish is a MIDI sequencer/filter implemented as a shell-like interpreter. It's intended to be lightweight, fast and reliable for real-time performance. Important features are: multiple MIDI devices handling, synchronisation to external MIDI devices, real-time MIDI filtering/routing (controller mapping, keyboard splitting, ...), track recording and editing (insert, copy, delete, quantize...), import and export of standard MIDI files, system exclusive messages handling.