Complex sentence: Their second album, "Origin of Symmetry" (2001), combining Bellamy's falsetto, heavier riffs, and influences from romantic classical music, earned them mainstream European success and a reputation for energetic live performances.
Split into simpler sentences: Their second album, "Origin of Symmetry" (2001), expanded their sound, combining Bellamy's falsetto, heavier riffs, and romantic classical influences. It earned them mainstream European success and a reputation for energetic live performances.