Sonic Pi Drum Sequencer

drumseq

#DRUM SEQUENCER
use_bpm 125

#PATTERNS (1=on, 0=off, 8 steps but add more if needed)
kickpattern  = (bools 1,0,0,0,1,0,0,0)
snarepattern = (bools 0,0,0,1,0,0,1,0)
hatpattern   = (bools 1,0,1,0,1,0,1,1)

#RESOLUTION (set step resolution in 0.25s)
seqres = 0.25

#MIXER (set volume between 0-1)

kick_vol  = 1
snare_vol = 1
hat_vol   = 1

#MUTES - turns individual drums on(true)/off(false)
kick_on  = true
snare_on = true
hat_on   = true

#the sequencer brain
live_loop :kick do
  if kickpattern.tick and kick_on
    sample :drum_heavy_kick, amp: kick_vol
  end
  sleep seqres
end

live_loop :snare do
  if snarepattern.tick and snare_on
    sample :drum_snare_hard, amp: snare_vol
  end
  sleep seqres
end

live_loop :hat do
  if hatpattern.tick and hat_on
    sample :drum_cymbal_closed, amp: hat_vol
  end
  sleep seqres
end