Sealed Stereo Original. Small Cut Out Hole. First Original Copy We Have Ever Had In Stock Of This Rare Title (Beware There Are Cheap Counterfeits Currently Circulating). Recorded In 1959 And 1963 With Two Different Line-Ups. "Formidable" From A 1959 Session And Five Numbers From A 1963 Mclean Set. While "Formidable" Has A Strong Quintet (With Altoist Jackie Mclean, Trumpeter Donald Byrd, Pianist Walter Davis, Bassist Paul Chambers, And Drummer Pete La Roca), The 1963 Session Has The Recording Debut Of Drummer Tony Williams Along With Strong Contributions From Byrd, Pianist Herbie Hancock (Then Also Near The Beginning Of His Career), And Bassist Butch Warren. The Latter Unit Sticks To Group Originals By Byrd, Hancock, And Mclean, And The Music Ranges From Catchy Funk And Hard Bop To Strong Hints Of The Avant-Garde.