 Entwistle's wry and sometimes dark sense of humour clashed at times with Townshend's more introspective, intellectual work.Although he wrote songs on every Who album except for "Quadrophenia", he was frustrated at Townshend not allowing him to sing them himself.As he said, "I got a couple [of songs] on per album but my problem was that I wanted to sing the songs and not let Roger sing them."