The Acid Tracks line

acid · dirty · 122 BPM (112–132) · C minor · 2 bars · 32 steps

The technique

Almost the whole figure sits on the root. The octave in bar one and the two steps at the end of bar two are the moves a listener holds on to.

Leave the rests in. The gaps let the filter close and reopen, and they give the line its shape.

Accent two steps in two bars, both on a note that has just changed. Play the rest under those accents so the filter has something to answer.

Sweep the filter by hand while it loops and leave everything else alone. This is a part you play the filter on.

The notes

2 bars in C minor. Each note is in force across the steps shown.

  • steps 1–12·C2·degree 1·MIDI 36
  • steps 13–20·C3·degree 1·MIDI 48
  • steps 21–26·F3·degree 4·MIDI 53
  • steps 27–32·G3·degree 5·MIDI 55

The grid

Every step below strikes the note in force at that point. The grid is where the figure is played.

  • —1, 13 (all vel 118)
  • —3, 11, 19, 27
  • —5, 9, 17, 21, 25, 29
  • —8, 16, 24, 32 (all vel 70)

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