instr 129, 130, 131, 132
129.orc
129.sco
  instr 129 ; One-Pole Lowpass
anoise rand ifrq
afilt tone anoise, kcut
  dispfft afilt, idur, 4096
 
  instr 130 ; Two-Pole Lowpass
anoise rand ifrq
afilt2 tone anoise, kcut
afilt1 tone afilt2, kcut
  dispfft afilt1, idur, 4096
 
  instr 131 ; Three-Pole Lowpass
anoise rand ifrq
afilt3 tone anoise, kcut
afilt2 tone afilt3, kcut
afilt1 tone afilt2, kcut
  dispfft afilt1, idur, 4096
 
  instr 132 ; Four-Pole Lowpass
anoise rand ifrq
afilt4 tone anoise, kcut
afilt3 tone afilt4, kcut
afilt2 tone afilt3, kcut
afilt1 tone afilt2, kcut
  dispfft afilt1, idur, 4096
a 0 0 2

;ins st dur amp frq atk rel cut1 cut2
;==================================================
i 129 2 1.5 3 20000 .1 .1 500 500
i 130 4 1.5 3 20000 .1 .1 500 500
i 131 6 1.5 3 20000 .1 .1 500 500
i 132 8 1.5 3 20000 .1 .1 500 500
i 129 10 1.2 1 20000 .01 .01 5000 40
i 130 11 1.2 1 20000 .01 .01 5000 40
i 131 12 1.2 1 20000 .01 .01 5000 40
i 132 13 1.2 1 20000 .01 .01 5000 40