On UPI, Ken Frankling wrote "This, Sphere's finest album, highlights the vast difference between a pick-up group and a band that was meant to play together. Sphere is one of the best small jazz bands around".[3] In his review on AllMusic, Ken Dryden states "Although Sphere was initially formed by Kenny Barron, Buster Williams, Charlie Rouse, and Ben Riley to honor Thelonious Monk, their repertoire expanded far beyond his compositions. There is only one piece by Monk included here, a very playful arrangement of "San Francisco Holiday" (or "Worry Later," as it was tentatively titled by Riverside producer Orrin Keepnews when it was first recorded by Monk). Barron's samba "Baiana" proves to be a lively opener, while "Lunacy" is a tense post-bop chart that inspires some of the group's best playing on the date. Rouse's upbeat "Bittersweet," Williams' moody ballad "Air Dance," and the bassist's calypso-flavored "Lupe" are also tasty originals. "This Time the Dream's on Me" is the only standard, but the call-and-response intro between Williams and the rest of the quartet and Rouse's joyous tenor sax make it a memorable interpretation. Duke Ellington's infrequently played "Melancholia" is simply breathtaking, as Barron's consummate voicings blend beautifully with Rouse's bittersweet sax".[2]
Track listing
"Baiana" (Kenny Barron) – 7:49
"Bittersweet" (Charlie Rouse) – 6:00
"Lunacy" (Barron) – 8:02
"Air Dance" (Buster Williams) – 7:59 Bonus track on CD
"San Francisco Holiday (Worry Later)" (Thelonious Monk) – 7:16
[2]