Davies was content playing as a session musician for Fontana Records, touring with some musicians of note including Spencer Davis.

"Heartbeat" became a rhythm and blues tune which was recorded later by Dusty Springfield, Spencer Davis and many other artists.

Also during that time she would often sing with Spencer Davis.

Spencer Davis released a cover version of the song on his 1997 album, Keep on Running.

Used by several popular musicians such as Brian Jones and Spencer Davis.

During this period Spencer Davis (12 string guitar) and Christine Perfect (piano) performed with them before pursuing separate careers.

Spencer Davis Keep on Running: 40th Anniversary CD (2004)

All tracks written by Spencer Davis and Eddie Hardin except where noted.

Spencer Davis of Spencer Davis Group was originally 2nd guitarist in the band, but left to pursue other interests.

Influenced by his Uncle Herman's mandolin playing, Spencer Davis began learning to play harmonica and accordion at the age of six.