Complex sentence: Their home base at the time was Hollywood's General Service Studio and some of the early members in the unit consisted of talented musicians such as Earl Palmer, Mel Pollen, Bill Aken, Barney Kessel, and Al Casey.
Split into simpler sentences: Their home base at the time was Hollywood's General Service Studio. Some of the early members of the unit were Earl Palmer, Mel Pollen, Bill Aken, Barney Kessel, and Al Casey.