The Cantata 700 is a commercial background music system and corresponding cartridge format developed by 3M that was in common use from 1965 until the 1990s.

The music distributed by 3M consisted of mono recordings some of which are attributed to the company's "3M Orchestra", with later editions featuring a themed blend of library music tracks and mostly instrumental cover versions of standard songs, and classical pieces arranged in a light or bright tempo.

Cartridges such as the Italian and Polynesian editions include some vocal content.

As the tape reaches one end, the reverse mechanism activates and changes the drive direction.

The tape head moves to the other side and the mechanism shifts pinch rollers.