Matthew Bellamy's vocals
Work-in-progress article expanding on Matt's voice and related aspects.
Studio vs. live
In the studio recordings of Muse songs, the majority of vocals are generally recorded by Bellamy. He frequently overdubs his voice with multiple layers, drawing comparisons to Queen on later albums.
When performed live, these layered vocals have historically been divided up amongst the band members according to their vocal range. As Dom does not sing, generally Chris will sing one harmony line while Matt sings lead. Since Morgan Nicholls became a permanent live member during the Black Holes And Revelations Tour, he has also sung additional harmony, though his voice is usually less audible than Chris or Matt.
At some point during the Drones World Tour, the band began to play some harmony lines from tape. Usually this occurs where the harmony is too high for Chris or Morgan to hit, such as during Knights of Cydonia or Stockholm Syndrome.