Medley: It Ain't Necessarily So, Summertime
Alpha Records - Oklahoma City
This is one tight lounge trio consisting of Al Tell - keyboards, Marvin Williams - bass and Kelly Cunningham - drums.
The group worked out of Oklahoma City and I found a mention of Tell in a 1956 copy of billboard mentioning his involvement on local TV. He was working on The Tome Paxton Show, a daily variety show featuring Emsee Paxton (presumably the band leader).