The album was released in 1989 by Rykodisc, and was later reissued by Smithsonian Folkways as part of their Mickey Hart Collection.

Later, in his studio, Hart transferred the sounds to 16-track tape, after which he, along with flutist Steve Douglas and bassist Bobby Vega, overdubbed additional tracks.

According to Hart, the recording is intended "to facilitate and coordinate rhythmic breathing cycles, assisting the mother's concentration and focus before, during and after delivery.

"[3][5][6][7] Hart initially had no intention of issuing the music to the general public, and sent copies on cassette tape to friends who inquired about it.

"[6][10] AllMusic's William Ruhlmann called the album "soothing,"[1] while author Julia Cameron described it as "propulsive, energizing, and grounding.