I recently saw an Eagle Rock documentary about the making of Tommy, probably shown to tie in with another reissue of Tommy (in addition to the deluxe edition). I really love the album and the interviews with the band and friends were fascinating. Despite having heard hours of Pete Townshend interviews, I will never understand what he is talking about or what his albums mean. Tommy does seem to be a metaphor for his own childhood and upbringing, as was Quadrophenia.
Pete Townshend was his usual full-of-himself, particularly regarding the early singles, but credit was given to: Roger Daltrey for adding attack to Pinball Wizard, as the demo was 'too sweet'; Kit Lambert for the production, ideas and concept; Damon Lyon-Shaw for good engineering; and the album cover artist, Michael McInnerney, also contributed ideas to the musical form.
Most interesting of all was Roger Daltrey saying he could never understand Kit Lambert multi-tracking his (Daltrey's) voice as he had a 'fat voice' anyway. Nevertheless he felt it gave the songs an eery quality. Supervised by Pete Townshend, the SACD editions removed much of the double-tracking. I feel thankful now that I bought a copy of Tommy, just before these later editions. Another curious point from Daltrey, was that he liked Amazing Journey because it summed up the journey of the band from hit singles and conceptual tracks to fully realised rock-opera. Amazing Journey/Sparks are tracks they continued to play live up to the Endless Wire shows, and I have always liked them a lot.