Sign of Four is by a simpler quartet formation with guitar and baritone sax as the leads. Epstein plays a mobile and hard swinging baritone that brings Serge Chaloff to mind, especially in his ballad work. While Roupe has a thick, cushiony guitar sound reminiscent of Abercrombie or Coryell. The two of them really mix it p and dance on "Last Call" and "Space Acre." "Cambodia" is a swirling, Rock bossa nova "Tuca's Song" s a nice vehicle for hushed, sensual playing from both lead guys. With an active rhythm section in tow, this is a fine set of intimate and free-flowing Jazz.