28. "Sparks" ('Tommy', 1969)
This Wagnerian instrumental track evokes the Who's live power more than anything else on Tommy. Townshend had wanted Tommy to have other interstitial material that would include battle noises and pinball sound effects, but abandoned the idea in his rush to complete the album. Originally titled "Dream Sequence," "Sparks" got its title from a 1962 collection of Meher Baba sayings called Sparks of the Truth and recycled a musical theme from "Rael," a mini-opera on The Who Sell Out. Townshend later said the version on Live at Leeds "gets as close as what's possible for that classical-rock thing."