[4] Still, Bonniwell regarded the Music Machine's arrangement of "Hey Joe" as innovative, invoking a slow, moody nuance that is strikingly similar to Jimi Hendrix's more well-known version.

[6] (Turn On) The Music Machine was released on December 31, 1966 and reached number 76 on the Billboard Top LPs chart.

[10] Critic Doug Sheppard praised Bonniwell's lyrical style, saying it "transcends the typical boy-girl theme of the day by instead favoring more introspective, psychological matter".

[11] In his article The Psychedelic Experience, Brian Hogg wrote the album "naturally features the group's hit single, as well as its flipside, the moody 'Come on In'.

But alongside these tracks were five equally excellent Sean Bonniwell originals, as well as five covers" that the author goes on to conclude were "all rather offbeat and idiosyncratic choices".