Module Synthesizer Q Rack Waldorf EX

http://en.wikipedia.org/wiki/Waldorf_Music
http://www.vintagesynth.com/waldorf/waldorf_q.php
http://www.soundonsound.com/sos/jun00/articles/waldorf.htm
http://www.synthman.com/waldorf/q-rack.html
http://www.waldorf-music.info/en/q.html
http://www.sequencer.de/syns/waldorf/Q.html
http://www.synthzone.com/waldorf.htm