Whether or not the four individual albums packaged with in Aces Back to Back are among Rahsaan Roland Kirk's finest is of no consequence. The fact that they have been assembled in a package that offers the listener a sense of Kirk's development and continuity is the issue here. And in this way, Aces Back to Back is a supreme collection. The four albums included - Left & Right, Rahsaan Rahsaan, Prepare Thyself to Deal With a Miracle, and Other Folks Music - date from 1968 to 1976 and chart dimensional growth of Kirk's completely original music. There's the outsider wizardry of Left & Right that melds the innovations of John Coltrane and Scott Joplin across an entire range of highly experimental yet wonderfully human music. Guests included Roy Haynes, Alice Coltrane, Julius Watkins, and many others in a band that ranged from a quartet to a full orchestra…