It consists of recordings of some of their songs played in concert during Casiopea's World Tour in 1988 that promoted their previous album, Euphony.

Lead trumpeter/vocalist of the band, Ichiro Nitta, was also the producer of The Tops at the time this album was released.

The Tops released one more album, Soul Children, the following year, before they disbanded in 1991.

This was also the last album to feature Tetsuo Sakurai on bass and Akira Jimbo on drums (during his run as a full-time member), who both left to form the band Jimsaku.

Casiopea are Horn Spectrum are Tops Horns are Recorded on JOIA - Casioea World Tour - is the live video released by the jazz fusion group Casiopea in 1989.