Song of Innocence is the debut album by American composer and producer David Axelrod. It was released in October 1968 by Capitol Records. In an effort to capitalize on the experimental climate of popular music at the time, Axelrod composed the album as a suite-like tone poem interpreting Songs of Innocence, a 1789 illustrated collection of poems by William Blake. Recording took place at Capitol Studios in Los Angeles with an orchestra and studio musicians from the Wrecking Crew collective, including keyboardist and conductor Don Randi, guitarist Al Casey, bassist Carol Kaye, and drummer Earl Palmer. An instrumental jazz fusion record, Song of Innocence incorporates elements of classical, rock, funk, pop, and theatre music. Axelrod arranged the music for bass, drums, and string instruments, composing in a rock idiom with tempos centered on such rhythms played by Palmer. He used contrast in his orchestral compositions, interspersing their euphoric psychedelic R&B structures with dramatic, harrowing arrangements to reflect the supernatural themes found in Blake's poems. The resulting music's reverent, psychedelic overtones have been interpreted as evoking the poet's themes of innocence and spirituality. While innovative for its application of rock and jazz techniques, Song of Innocence was not commercially successful and confounded contemporary critics, who viewed it as an ambitious but foolish curiosity piece. In the 1990s, critics reassessed the album as a classic, while leading disc jockeys in hip hop and electronica rediscovered and sampled its songs. "Holy Thursday", the record's best-known track, was frequently sampled by hip hop producers. The renewed interest in Axelrod's work prompted Stateside Records to reissue Song of Innocence in 2000. Background In the 1960s, Axelrod worked as a producer and A&R executive for Capitol Records in Los Angeles. During this time, he began to conceive his own musical ideas, involving a fusion of baroque classical sounds, R&B rhythms, and spiritual themes. Challenged by what he described as a "new breed of record buyer ... more sophisticated in his thinking", he was one of several Los Angeles-based musical eccentrics during the late 1960s who wanted to expand on the mid-1960s studio experiments of Brian Wilson and George Martin. His first attempt at this creative vision was composing a religious-themed, psychedelic opera for the Electric Prunes, a local garage rock group. When the band found it too challenging to finish the recording, Axelrod enlisted studio musicians from the Wrecking Crew to complete the album, released as