Excellent 20 CD box set that focuses on the influential work of Blue Note recording engineer Rudy Van Gelder. Often regarded as one of the most important recording engineers in music history, Van Gelder has recorded several thousand Jazz sessions, including many widely recognized as classics, in a career spanning more than half a century. This box contains 20 albums that he is best known for including platters from John Coltrane, Miles Davis, Eddie 'Lockjaw' Davis, Thelonious Monk & Sonny Rollins, Modern Jazz Quartet, Eric Dolphy, Sonny Rollins, Coleman Hawkins, and many others.