Just a quick run-through of the names involved in this ten- CD set might be enough to whet the curiosity of the uninitiated and the appetites of devotees of the music that changed jazz in the 1940s. A few of them: Bud Powell, Allen Eager, Milt Jackson, Fats Navarro, James Moody, Tadd Dameron, George Wallington. Not to mention Art Blakey, Stan Getz, Sonny Rollins, Gerry Mulligan, Sonny Stitt, J.J. Johnson and Brew Moore. Mosaic Records has assembled and remastered dozens of performances from the period when Savoy Records was at the top of the bebop heap. The tracks include master takes and alternates brought up to high sonic standards. This is a major box-set event, even in the light of Mosaic’s enviable track record.