For this quartet date, the great and innovative pianist/composer Andrew Hill performs "Here's That Rainy Day," and his powerful 25-minute opus "Divine Revelation," and three more concise originals with a quartet; an alternate take of "July 10th" was added to the CD reissue. In addition to Hill, bassist Chris White and drummer Leroy Williams, the set features a completely obscure but reasonably talented altoist (Jimmy Vass) who also is heard on soprano and flute and seemed to have really dug into the essence of Andrew Hill's complex but logical music.