was not strictly anti-revolution despite the lyric "We'll be fighting in the streets", but stressed that revolution could be unpredictable, adding, "Don't expect to see what you expect to see. Expect nothing and you might gain everything." Bassist John Entwistle later said that the song showed Townshend "saying things that really mattered to him, and saying them for the first time." Townshend had been reading Universal Sufism founder Inayat Khan's The Mysticism of Sound and Music, which referred to spiritual harmony and the universal chord, which would restore harmony to humanity when sounded. Townshend realised that the newly emerging synthesizers would allow him to communicate these ideas to a mass audience. He had met the BBC Radiophonic Workshop which gave him ideas for capturing human personality within music. Townshend interviewed several people with general practitioner-style questions, and captured their heartbeat, brainwaves and astrological charts, converting the result into a series of audio pulses. For the demo of "Won't Get Fooled Again", he linked a Lowrey organ into an EMS VCS 3 filter that played back the pulse-coded modulations from his experiments. He subsequently upgraded to an ARP 2500. The synthesizer did not play any sounds directly as it was monophonic; instead it modified the block chords on the organ as an input signal. The demo, recorded at a slower tempo than the version by the Who, was completed by Townshend overdubbing drums, bass, electric guitar, vocals and handclaps. Recording The Who's first attempt to record the song was at the Record Plant on W 44 Street, New York City, on 16 March 1971. Manager Kit Lambert had recommended the studio to the group, which led to his producer credit, though the de facto work was done by Felix Pappalardi. This take featured Pappalardi's Mountain bandmate, Leslie West, on lead guitar. Lambert proved to be unable to mix the track, and a fresh attempt at recording was made at the start of April at Mick Jagger's house, Stargroves, using the Rolling Stones Mobile Studio. Glyn Johns was invited to help with production, and he decided to re-use the synthesized organ track from Townshend's original demo, as the re-recording of the part in New York was felt to be inferior to the original. Keith Moon had to carefully synchronise his drum playing with the synthesizer, while Townshend and Entwistle played electric guitar and bass. Townshend played a 1959 Gretsch 6120 Chet Atkins