After the solo from Parker is a 32-bar drum solo from drummer Max Roach. The drums for the piece are tuned higher than normal, which gives the solo a brighter, livelier feel. Roach also pushes forward the tempo in an exciting fashion, but it pulls back collectively to the original tempo soon after Parker and Gillespie reenter. The piece finishes with a 28-bar coda, integrating the main themes from the introduction and improvisation from Parker and Davis, and finally an abrupt ending. The ending feels unresolved, like an imperfect cadence, because the bassist, Curly Russell plays an F as the final note. Even without harmonic context, the F sounds like a dominant chord with no resolution due to the strong tonicization of B flat major throughout the recording. Releases "Ko Ko" was issued and reissued many times over the years. The original release was as the B-side coupled with Don Byas' rendition of "How High the Moon" on a 78 rpm Savoy 597. This record was reissued as Savoy 916, the Savoy 900 series being dedicated to Bebop. On both records the group was credited as "Charlie Parker's Ri Bop Boys". The song was subsequently released on Savoy XP 8001: Charlie Parker, Vol. 2 (7 inch EP) and Savoy MG 9000: Charlie Parker, Vol. 1 (10 inch LP) when these formats came into vogue in the early 1950s. It was also released on Savoy XP 8097: Bird – Diz – Bud – Max, Vol. 1 and Savoy MG 9034: Bird – Diz – Bud – Max on the same formats. These were compilations of bebop tracks by Parker, Gillespie, Powell and Roach; on both of these latter releases the title was listed as "Co-coa". "Ko Ko"'s next release was on Savoy MG 12014: The Genius of Charlie Parker. This was also its first 12-inch LP release. The Charlie Parker Story was released next, which included all of the takes from the entire session. This album was the first to release the aborted first take of "Ko Ko" along with the previously released master take. The master take of "Ko Ko" was released next on Savoy 12126: The Jazz Hour, a compilation of various Savoy artists; and then on Savoy SJL 2201: Bird/The Savoy Recordings (Master Takes). And, as noted above, the entire session was reissued again on the box set Charlie Parker: The Complete Savoy Studio Recordings. CD reissues followed