Of the relatively few number of instrumental hits recorded by pop group Chicago, Mongonucleosis recorded in 1974 remains a popular standout. This upbeat chart features a moderate rock groove, a catchy riff-based melody, and an open solo section for featuring one or more players.
| Arrangement | Jazz Band |
| Genres | Pop, Rock |
| Format | Score and Parts |
| Level | 3 |
| Media | Sheet Music |
| Publisher | Hal Leonard |
| Contributors | Pankow, James(Composer) Tomaro, Mike(Arranger) |
| UPC | 888680756444 |