I second the Bill evans "Conversations With Myself" recommendation. Truly a genius at work.
Also check out Herbie Hancock and Chick Corea's duet album. Not only is the playing phenomenal, but it is an intriguing work out for your system, working only one chanel at a time and hearing the two meld.
Finally, Ahamd Jamal, "World Tour" (or "Night at the Pershing") and "Live at the Montreal Jazz Fest", specifically the first cut, "Yellow Fellow".
Also check out Herbie Hancock and Chick Corea's duet album. Not only is the playing phenomenal, but it is an intriguing work out for your system, working only one chanel at a time and hearing the two meld.
Finally, Ahamd Jamal, "World Tour" (or "Night at the Pershing") and "Live at the Montreal Jazz Fest", specifically the first cut, "Yellow Fellow".