The Collectors' Colosseum is probably the first compilation album

Album

An album is a collection of recordings, released as a single package on gramophone record, cassette, compact disc, or via digital distribution. The word derives from the Latin word for list .Vinyl LP records have two sides, each comprising one half of the album...

 by Colosseum

Colosseum (band)

Colosseum is a pioneering British progressive jazz-rock band, mixing progressive rock and jazz-based improvisation.-History 1968 - 1971:The band was formed in September 1968 by drummer Jon Hiseman, tenor sax player Dick Heckstall-Smith and bass player Tony Reeves, who had previously worked together...

, released in England in 1971.

Track listing

1. "Jumping off the Sun", recorded in 1970, with Chris Farlowe's vocal overdub (according to the original back cover)
2. "Those about to Die", excerpt from their first LP
3. "I Can't Live Without You" – 4:15, recorded 1968
4. "Beware The Ides of March", from their first LP
5. "Walking in the Park" – 3:55, idem
6. "Bolero" – 5:29, recorded late in 1969
7. "Rope Ladder to the Moon", recorded in 1970 and composed by Jack Bruce
8. "The Grass is Greener", recorded late in 1969

Personnel

On tracks 2, 3, 4, and 5 : Jon Hiseman on drums, Dick Heckstall-Smith on saxes, Dave Greenslade on organ, Tony Reeves on bass, James Litherland on guitar & vocals.

On tracks 6 and 8 : Jon Hiseman on drums, Dick Heckstall-Smith on saxes, Dave Greenslade on organ, Tony Reeves on bass, Dave Clempson on guitar.

On tracks 1 and 7 : Jon Hiseman on drums, Dick Heckstall-Smith on saxes, Dave Greenslade on organ, Tony Reeves on bass, Dave Clempson on guitar & vocals, Chris Farlowe on vocals.