Four patterns in one! Each keypress will get their own pattern/sequence! Up to four pattern options at once.
Cycle through the patterns with each press – so playing pressing and releasing just one key will end up cycling through all four patterns. If you press and hold, say, two keys and then press and release a third key, the held keys will keep their pattern while the third key will cycle through the four patterns.
Use a basic text editor to change the pattern as you see fit!
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