MIDI
From TidalCycles userbase
Controlling MIDI synths with Tidal
If you want to control MIDI synths, then use SuperDirt MIDI. The older 'tidal-midi' Haskell module is not currently working (although may return!). Try out the new SuperDirt MIDI Tutorial.
Synchronising MIDI clock
Controlling Tidal with external controllers
To control Tidal from an external MIDI device, look at the Controller Input page.