<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac    -M1  ;;;realtime audio out and midi in 
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o midichannelaftertouch.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 2
0dbfs  = 1

instr 1

midinoteoncps p4, p5				;puts MIDI key translated to cycles per second into p4, and MIDI velocity into p5
kafter init 127					;full open				
midichannelaftertouch  kafter
printk2 kafter					;display the key value when it changes and when key is pressed

kvel = p5/127					;scale midi velocity to 0-1
kenv madsr 0.5, 0.8, 0.8, 0.5			;amplitude envelope multiplied by
ain  pluck kenv*kvel, p4, p4, 2, 1		;velocity value	
asig moogvcf2 ain, 200+(kafter*40), .5		;scale value of aftertouch and control filter frequency
     outs  asig, asig				;base freq of filter = 200 Hz

endin
</CsInstruments>
<CsScore>
f 0 30	;runs 30 seconds
f 2 0 4096 10 1	

i 1 0 2 440 100	; play these notes from score as well
i 1 + 2 1440 100
e

</CsScore>
</CsoundSynthesizer>