Which The Who song was subtitled 'Teenage Wasteland' in early Lifehouse notes?

The Who song subtitled “Teenage Wasteland” in early Lifehouse notes was “Baba O’Riley.”

The phrase is widely mistaken for the song’s official title because Roger Daltrey repeatedly sings “It’s only teenage wasteland” near the end of the chorus. The released recording, however, is titled “Baba O’Riley,” a name combining two of Pete Townshend’s major inspirations: the Indian spiritual teacher Meher Baba and minimalist composer Terry Riley.

Townshend wrote the song for Lifehouse, his proposed follow-up to Tommy. In the early project materials, “Teenage Wasteland” appeared as a working title or related designation. Lifehouse was eventually abandoned as a complete rock opera, but eight songs connected with it were recorded for Who’s Next, which opened with “Baba O’Riley” in 1971.

The song’s famous repeating keyboard pattern also grew from the Lifehouse concept. Townshend imagined entering Meher Baba’s vital statistics and personality into a synthesizer to generate music. He ultimately created the part with a Lowrey organ’s marimba-repeat feature. Thus “Teenage Wasteland” is a useful nickname and historical Lifehouse reference, but not the official title of the Who recording.