retroskoi is a 2-oscillator monophonic synth for commodore 64


all keys to play

cursor keys to bend

f1-f7 to select keyboard octave


hold down shift to edit sound

shift + a-p to select parameter

shift + 1-9 to change parameter value

shift + <-, then shift + 1-9 to load patch

shift + œ, then shift + 1-9 to save patch


have fun,
aleksi


parameter table:

                        1     2     3     4     5     6     7     8     9
a  osc1 waveform        tri   saw   pulse noise t+s   t+p   t+s+p mute  off
b  osc1 envelope        gate  synth pluck tap   brass slow  revrs soft  bell
c  osc1 transpose       -24   -17   -12   -5    0     +7    +12   +19   +24

d  osc2 waveform        tri   saw   pulse noise t/snc s/snc p/snc ring  off
e  osc2 envelope        gate  synth pluck tap   brass slow  revrs soft  bell
f  osc2 transpose       -24   -17   -12   -5    0     +7    +12   +19   +24
g  osc2 detune          1     2     3     4     5     6     7     8     9

h  pulse width          1     2     3     4     5     6     7     8     9

i  lfo rate             1     2     3     4     5     6     7     8     9
j  lfo vibrato          1     2     3     4     5     6     7     8     9
k  lfo pwm              1     2     3     4     5     6     7     8     9

l  filter envelope      gate  synth pluck tap   brass slow  revrs soft  bell
m  filter cutoff        1     2     3     4     5     6     7     8     9 
n  filter modulation    1     2     3     4     5     6     7     8     9 
o  filter type          lpf   bpf   hpf   lb    lh    lbh   bh    lpq   lbq
p  filter resonance     1     2     3     4     5     6     7     8     9