Ah, yes, the Magic Dictaphone. First of all, it changes lyrics. Sid 'records' the lyric "Are you too much in love to hear?" and Magic Dictaphone plays back "Are you just too far gone to hear?” Second, Sid records melody and Magic Dictaphone plays back harmony.
I'd look for Magic Dictaphone infomercials in the near future.
'Our whole family shouts. It comes from us livin' so close to the railroad tracks'