Spur of the Moment is an album of experimental music by Peter Hammill and Guy Evans, originally released as cassette tape on the Red Hot label in 1988, and on CD by DaTE, a division of Line Music GmbH.

[3] According to the booklet, instruments and fundamental note-patterns were decided upon prior to performing a piece, but no further structure was arranged in advance.

A 20 second snippet of "Sweating it Out" was used as the theme music for a Boots the Opticians TV commercial.

The album cover shows parchment with lines of red and green paint, and in some places a "2" or "two" is discernable.

As the booklet states: "In much of this music the straight edges of the conventional instrument/instrumentalist picture become blurred; often the overall effect is of one instrument being played by four hands in some strange modern variant on the traditional piano duet.