Complex sentence: Nick Garrett is a bass-baritone from London, England and is also the former bass baritone for Amici Forever; he composed all the vocal arrangements for the band's 2005 album, "Defined".
Split into simpler sentences: Nick Garrett is a bass-baritone from London, England and a member of the band Amici Forever. In addition to singing for the group, he composed all the vocal arrangements for the band's 2005 album, "Defined".