I'm very sad to announce that Jan Deak, the author of ZX7, ZX10, ZX15, ZX16
multichannel beeper music routines and a co-author of many projects like PickOut2, introduction disk for Didaktik Kompakt etc, passed away this weekend in the age of 46 years. Rest In Peace.
Please remember his last ZX work - 16 channels 1-bit player from March 2014.
http://busy.speccy.cz/tmp/zx16mono.mp3(sorry for English but I don't have a mood to translate it)