by Andreas Bien

Not playable: nothing playable: https://media.demozoo.org/music/db/f2/invention_13_basic.sid: not a module, SID or AY file the players handle; https://hvsc.brona.dk/HVSC/C64Music/DEMOS/G-L/Invention_13_BASIC.sid: not a module, SID or AY file the players handle; https://ftp.modland.com/pub/modules/HVSC/DEMOS/G-L/Invention_13_BASIC.sid: not a module, SID or AY file the players handle.