space to play
space  play/stop     enter  pick a sound (or drop one)
1-6    loop length   whole ½ ¼ ⅛ 1/16 1/32  (beat repeat)
q-p    loop start    0/10 … 9/10 of the sample
a-l    pitch         -12 -7 -5 -2 0 +3 +5 +7 +12
z-m    colour        dry  low  high  echo  room  crush  all