In May of 1969—a full eleven years before Paul McCartney baffled his fans with the goofy electronic experiment “Temporary Secretary”—George Harrison released his second solo album, Electronic Sound, consisting of two side-length explorations composed on a modular Moog synth, “Under the Mersey Wall” and “No Time or Space.”
 

 
Unsurprisingly, the album barely charted in the U.S. and failed altogether in the U.K.—even in a period as indulgent as the late ’60s, a novice knob-twiddler’s pair of lengthy beepscapes wasn’t going to fly with the masses—and has only been reissued once, in 1996. But as it was one of the first albums ever to feature a Moog exclusively, and because let’s face it, it was made by a Beatle, it remains an item of interest among historically bent electronic music obsessives and Beatles completists. You can hear the entire album below. For whatever it’s worth, I’m a little more partial to side two (a composition that was the subject of a minor controversy), which starts at about 18:44.
 

 
The LP was the second release on Apple Records’ “Zapple” imprint. Zapple was intended to be Apple’s avant-garde subsidiary, but it only existed for a few months in 1969 and only released two albums, John Lennon and Yoko Ono’s also very rare Unfinished Music No.2: Life With The Lions being the first. The label was folded by Beatles manager Allen Klein only a month after Electronic Sound’s release—evidently enough was already enough. Harrison himself had much to say about the difficulty of curating a record label in this rare contemporary interview.