Complex sentence: Some literary critics have held that Campion wrote the poems for Rosseter's songs, however this seems not to be the case, however it is likely that Campion was the author to the book's preface, which criticised excessive madrigalisms and complex counterpoint.
Split into simpler sentences: Some literary critics have held that Campion wrote the poems for Rosseter's songs; however this seems not to be the case. It is likely that Campion was the author to the book's preface, which criticized excessive madrigalisms and complex counterpoint.