The Beatles – Sgt. Pepper's Lonely Hearts Club Band (1967)
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The Beatles – Sgt. Pepper’s Lonely Hearts Club Band

Considered one of the earliest art rock LPs and a precursor to progressive rock, Sgt. Pepper is a pivotal piece of British psychedelic music. It combines a variety of styles, including as Western and Indian classical music, circus, music hall, and avant-garde. Many of the recordings were colored with sound effects and tape manipulation with the help of Geoff Emerick and George Martin.

The Beatles - Revolver (1966)
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The Beatles – Revolver

Building on the developments of their late 1965 release Rubber Soul, Revolver is The Beatles’ pivot from pop kings to sonic alchemists—acid-drenched, razor-sharp, and emotionally loaded. It’s a kaleidoscope with teeth, still turning heads decades later.

The Byrds - Fifth Dimension (1966)
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The Byrds – Fifth Dimension

Fifth Dimension finds The Byrds breaking free—no Dylan, no Clark, just raw psychedelia, raw ambition, and cosmic riffs. It’s messy, bold, and brilliant, a band chasing new frontiers and nearly falling apart while inventing something timeless in the process.

The Yardbirds - Roger the Engineer (1966)
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The Yardbirds – Roger the Engineer

It sounds like a band trying to break out of themselves, each song another shove against the walls closing in. Roger the Engineer isn’t polished; it’s impulsive, twitchy, and brilliant in its refusal to stay in one place. It wasn’t just ahead of its time – it was already annoyed at the future.

The Beach Boys – Pet Sounds (1966)
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The Beach Boys – Pet Sounds

Pet Sounds is a fragile masterpiece—reimagined with heartbreak, orchestration, and raw sincerity. Brian Wilson trades surf rock for introspection, layering harmonies and oddball sounds into an album that aches, dazzles, and dares to wear its heart on its sleeve.