It depends! The regular Xbox has very bad quality, but the Xbox 360 has pretty good quality for music.

quality

The Quality Music Project ?

well, after having lost money, the record company is forced to reduce budgets on how many Cd's it can produce. it can also effect the quality of the music video or the quality of the rhythm in the background. overall the quality of music would go down once the industry starts to lose money from piracy

Because the quality of music suffers due to increased quantity