Hi,

the only sound file of Doepfer MS 404 I have found in internet is a
real media file on "Vintage Synth Explorer":

http://www.vintagesynth.org/audio/ms404.rm

Looking forward to hear something about the recordings made for KEYS -
I looked into my CD board, but did not found any records, because my
first KEYS CD was released on 12/97...

Robert