by Michael BraisherThe Commodore 64, to my mind, truly introduced ‘real’ music to the world of home computing. Its impressive inbuilt SID synthesizer was capable of much more than the bleeps and pops common to other machines. As a musical tool, the Commodore 64 could boast an impressive array of add-ons, which included Commodore’s SFX Sound Expander synth’ cartridge and keyboard, MIDI interfaces