Improvision is an album by guitarist Alex Machacek, drummer Jeff Sipe, and bassist Matthew Garrison.

[1][2][3][4] In a review for Jazz Times, Forrest Dylan Bryant praised the album's "quicksilver melody and locomotive rhythm," and wrote: "this progressive fusion disc proclaims the continued vitality of electric and electronic jazz.

"[7] John Kelman of All About Jazz awarded the album a full 5 stars, calling it "another step forward for a kind of intelligent fusion that juxtaposes inspired soloing with near-telepathic interplay and imaginative writing.

"[5] AAJ's Ian Patterson also awarded the album 5 stars, calling it "wonderful music," and commenting: "The CD sleeve suggests filing Improvision under Jazz/Rock.

Perhaps a more fertile idea, in keeping with the music, and in the hope that it reaches the widest possible audience would be to file it under Extraordinary.