David Clayton-Thomas
From the All Music Guide:
'A simple, funky piano riff drives this excellent karmic period piece, which combines pop, soul, rock and a hint of psychedelic color together to create one of Blood, Sweat & Tears' most lasting classics. According to drummer Bobby Colomby, "Stylistically, [it] was simple enough for us to have fun with it, and make an almost comedic, overblown arrangement of a very simple tune." It is a deceptively simple song, but like their previous hit, "And When I Die," the arrangement creates a mini-suite, and it fit the progressive airwaves like a glove in summer of 1969'