Take a SID card that emulates the Commodore 64's SID audio chip... Load it into a Commodore Plus/4... Start coding... And here there comes another marvellous demo !!!! This one is called "Zenith of Puberty" and is produced by Degauss and TEK... I can't imagine if Commodore had put a SID chip on the Plus/4 and had adjusted the sprite handling in TED graphic part... Plus/4 for sure would have been an explosive computer... Here' s the videoclip... enjoy !!!!