Guitarist Grant Green and pianist Sonny Clark recorded together on five separate occasions during the 1961-1962 period, but virtually none of the music was released domestically until decades later. These performances were clearly lost in the shuffle, for the solos are of a consistently high quality, and the programs were well-paced and swinging. Now, the long-lost music (much of which had been previously available only in Japan) is saved for posterity on this Mosaic limited-edition four-CD box set. Green and Clark blend together well. Tenor saxophonist Ike Quebec joins their quartet for one session, and the final two numbers add Latin percussion. All of this music should be enjoyed by hard bop fans. Included are the Blue Note albums Gooden's Corner, Nigeria, Oleo, Born to Be Blue (with Ike Quebec), and unissued tracks.