Much like you can switch between patterns by clicking on various Event switches, you can play and switch between patterns using MIDI data.This lets you create interactive changes in your beat over time, and record the MIDI data so that the same sequence can be played back and edited once it’s been recorded.2 Use the octave switches on your MIDI controller to make sure you have access to MIDI notes C3–C4. You may need to play a number of notes to find the right range, but once you have, you’ll notice that Boom plays a pattern each time you play a note.3 If you press and hold a note, the corresponding pattern plays until you release the note.4 If you play legato within that range while holding down the first note, Boom switches patterns, starting the new pattern at the same rhythmic step where the previous pattern left off.This MIDI data can be recorded and edited using the MIDI sequencer in Pro Tools, letting you create complex sequences of drum patterns.If you do not have a MIDI controller, you can use the Pencil tool in Pro Tools to create a sequence of MIDI notes to trigger patterns over time.
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See the Pro Tools Reference Guide for instructions on how to use MIDI and instrument tracks in Pro Tools to control instrument plug-ins.