I was curious to know where to obtain songs that have been airplayed and not on a specific albums or soundtracks. Songs, such as, Pete Townsend performing Who songs as a solo artist like Pinball Wizard, Love Reign O'er Me, and even Behind Blue Eyes which have gotten airplay on WPLJ in NYC during the early eighties.
iTunes, etc
YouTube. Look up the song you want and you may find alternate versions, live recordings, etc., though some are audio only with no video