Patchwork

Patchwork is a combined polyphonic MIDI step sequencer and arpeggiator with some unique features.

Sequencer:

• Playing back the sequence in reverse, bouncing back and forth, odd notes then evens, shuffle
• Repeating the note at the same octave, or one up or down, or randomising the playback octave (+1,0,-1)
• Playing over a sequence, one key transpose then return to playover, or stay in transpose
• Inversion of the sequence
• Recording a new sequence silently while the current one plays
• Apply one or two Euclidean, anti-Euclidean and non-Euclidean rhythms to the playback

Arpeggiator:

• An arpeggiator with various standard and novel patterns
• Variations of patterns
• Dual mode where a second note from the arpeggiator pattern is added (every step, ever 2nd, every 3rd or with 25% probability)
• Overplay mode where any held notes are played as held while the arpeggio continues
• Apply one or two Euclidean, anti-Euclidean and non-Euclidean rhythms to the playback

Combined:

• Split keyboard with the arpeggiator at the upper end and the sequencer the lower
• Two MIDI output ports so sequences and arpeggios can go to different devices or layers.

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Demo

The following video gives an overview of the basic operation.

• 1:12 Dual sequencer/arpeggiator
• 1:53 Sequencer pattern variations (like the D-Thing)
• 2:25 Echo/octave variations
• 3:50 Polyphonic sequence
• 4:38 Rests and ties

The demo is a bit rough since I was using a faulty Super Gemini. I had to quickly record and then send it back to the shop. I’ve only just got it back. :-/