Question: How accurate is the music in the game compared to the real music?
Answer: Pretty darned accurate. Granted, it's been a few years since I've played it, but pretty much the only difference I can recall is that the music in the first few "Guitar Hero" games were covers instead of the original recordings. But other than that, they sounded quite close.
Answer: For the first couple, most songs were covers as presented onscreen with "As Made Famous By: " In later games they used the guitar master tracks from the recordings of the songs. One notable song is Anarchy in the UK by The Sex Pistols on Guitar Hero 3. The band had lost the original master recordings so they returned to the studio to record the song again just for the game.
Ssiscool ★