Arranging synth patterns with triggers

Three instrument groups separate the musical material from the arrangement:

• Bass: four Pattern sequencers feed Midi scale, FoMo and Airwindows IronOxide5.
• Bells: two patterns feed an Arpeggiator, Midi scale, Synthimi and a PitchDelay.
• Drums: three patterns feed Kaboom and ZBandpass2.

Their nested pattern intervals have interactive start and end triggers. States in the outer scenario send impulses to exposed score:/triggers/ addresses, selecting the clips independently of their visual placement. The arrangement includes two looping chains of states rather than a single fixed song ending.

Play the arrangement

No samples or physical MIDI device are required. Use a build with FoMo, Synthimi, Kaboom, Airwindows and BarrVerb; configure the audio device at a low listening level.

1. Start playback. Trigger the outer start state near 2 seconds annotated as the first song. It sends score:/triggers/Trig Bass A; following states trigger drum and bell patterns and return through the arrangement loop.
2. Open the Bass, Bells and Drums scenarios to watch the named pattern intervals respond. Their interactive ends can also be triggered directly.
3. Trigger the second arrangement’s start near 16.06 seconds. It sends Trig Drum C, Trig Bass C and Trig Bells 2, then enters another loop containing Automations.
4. Inspect that interval: two curves write score:/controls/PitchDelay/dry_wet and /regen; a Step sequencer writes /pitch.

The outer scenario’s audio enters the scriptable master PitchDelay, then DrumSlam, Tube2 and BarrVerb. BarrVerb sends to the parent mix at audio:/out/main. The addresses above are the document’s own exposed controls and triggers, not an OSC server.

Download this example

Try this on web

---