What is remember a day?

"Remember a Day" is a song by the British psychedelic rock band Pink Floyd, featured on their second album, "A Saucerful of Secrets," which was released in 1968. The song was written and sung by the late Richard Wright, who was a founding member and keyboardist of Pink Floyd.

"Remember a Day" features dreamy, poetic lyrics that evoke a sense of nostalgia and longing for lost innocence. The song has a slow, waltz-like tempo and a melodic, wistful sound that's reminiscent of a music box. The song's instrumentation includes Wright's keyboards, Rick Wright's guitar, and Nick Mason's percussion, along with occasional orchestral arrangements by composer Norman Smith.

Overall, "Remember a Day" is a deeply introspective and sentimental song that captures the mood and spirit of the late '60s psychedelic era. It's a testament to Wright's songwriting abilities and his contribution to Pink Floyd's unique sound.