The Beatles-Sgt. Pepper´s Lonely Hearts Club Band (1967)

In June 1967, The Beatles released "Sgt. Pepper's Lonely Hearts Club Band", the album that changed all the established rules in the world of rock and music in general. From the artwork of its iconic cover to the meticulous and elaborate composition, this album was completely groundbreaking. For its recording, The Beatles used highly advanced recording techniques with the best and most modern studio equipment. They also fused different musical styles, ranging from rock to blues, including psychedelic sounds, raga, and progressive rock. The nascent experimentation they had already shown in their previous works, "Rubber Soul" and "Revolver", completed the most avant-garde circle with this album. The instruments used were no longer just guitar, bass, drums, vocals, and backing vocals; here there were also different percussion instruments, wind instruments, strings, elaborate arrangements, keyboards, and a multitude of special effects. The entire album is a fascinating adventure, from the psychedelic "Lucy in the Sky with Diamonds" to the poignant "She's Leaving Home", passing through the experimental and exotic "Within You Without You", the complex "A Day in the Life", the cabaret-style "Fixing a Hole", the pop "Getting Better", the rock "Sgt. Pepper's Lonely Hearts Club Band", the progressive "Being for the Benefit of Mr. Kite!", and the beautiful "With a Little Help from My Friends". "Sgt. Pepper's Lonely Hearts Club Band" is considered one of the ten greatest albums in music history and one of the most commercially successful, with over thirty million copies sold worldwide.