premise: Chuck Wright is an American bassist, graphic designer and show producer, best known as a member of multi-platinum heavy metal band Quiet Riot. He originally joined Quiet Riot in 1982, playing bass on the tracks "Metal Health (Bang Your Head)" and "Don't Wanna Let You Go," as well as singing background vocals on all the tracks from the 1983 hit album, "Metal Health".
hypothesis: Chuck Wright wrote his own songs.
reason: The statement doesn't say whether or not he wrote his own songs.