Midinous is a non-linear MIDI sequencer allowing users to create expansive looping complex sequences which don’t subscribe to a definite timeline. Meter is determined only by a user’s imagination. Midinous can, however, still send MIDI clock messages to sync up devices and software.

Cool explanatory video, with an unfortunate clickbait title: https://www.youtube.com/watch?v=rtTWtzWav8I