4+1 Ensemble is an album by American keyboardist and composer Wayne Horvitz recorded in 1996 and released on the German Intuition label.

[1] The name of the group refers to its membership: four men playing standard musical instruments, plus an additional person processing their performances with various electronic effects in real-time.

The Allmusic review awarded the album 4 stars.

[2] All tracks are written by Wayne Horvitz