 Complete the following phrase:  Townshend came up with the concept of Tommy after being introduced to the work of Meher Baba, and attempted to translate Babas teachings into music. Recording on the album began in September 1968, but took six months to complete as material needed to be arranged and re-recorded in the studio. Tommy was acclaimed upon its release by critics, who hailed it as the Whos breakthrough. Its critical standing diminished slightly in later years; nonetheless, several writers view it as an important and influential album in the history of rock music. The Who promoted the albums release with an extensive tour, including a live version of Tommy, which lasted throughout 1969 and 1970. Key gigs from the tour included appearances at Woodstock, the 1969 Isle of Wight Festival, the University of Leeds, the Metropolitan Opera House, and the 