The Allmusic review by Scott Yanow awarded the album 3 stars, stating, "The pretty spontaneous music often wanders and rambles a bit, reaching some surprising conclusions and showing expert use of space; very advanced for 1967".[1]
Track listing
Side one
"Number 1" (Bowie/Favors/Mitchell) - 21:37
Side two
"Number 2" (Mitchell) - 24:27
"Number 1" recorded August 11, 1967, "Number 2" recorded August 25, 1967 at Sound Studios.