Q:Songs in the Key of Rock is a studio album by former Deep Purple Black Sabbath and Trapeze vocalist/ bassist Glenn Hughes. It was his ninth solo studio album and was released in 2003 on Frontier and Pony Canyon records. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Album