The Delfonics was a part of the Philadelphia Soul sound of the 1970's.
Winning a Grammy Award for Best R&B Performance by a Duo or Group, once again Thomas Bell and William Hart wrote the 'Philly soul ballad' for the Delfonics ...
all the way from West Philly, the Delfonics.
The Delfonics Didn't I (Blow Your Mind This Time) with lyrics (1970)
EASTSIDE STORY VOL.8.