Instrumental | Choral |
| Wind Ensemble - An auditioned group comprised of wind and percussion students, specializing in challenging, contemporary repertoire. | Collegiate Choir - An auditioned ensemble that is dedicated to the performance of the finest sacred and secular choral music of the past five centuries. |
| Symphonic Winds - An auditioned group, comprised of music majors and liberal arts students, which performs a variety of sophisticated concert band repertoire. | University Choir -A larger mixed choir open to all students by preliminary placement hearing. The choir performs sacred and secular choral literature of different styles and periods. |
| Illinois Wesleyan Civic Orchestra - A School of Music / community orchestra that specializes in large orchestral and choral / orchestral literature. | Chamber Singers - A select ensemble of 16-20 voices open to all students in the university by audition. The choir presents concerts of vocal chamber literature. |
| Titan Band - This group provides music and entertainment for on-campus sporting event, is non-auditioned, and is open to all students of the University. | |
Jazz | Opera |
| Jazz Ensemble - An auditioned ensemble that began when Dr. Streeter started the jazz program at Illinois Wesleyan in 1972. The band has performed in the US and internationally. | Opera Theatre - Annual performances of operatic excerpts and full-scale productions. Recent productions have included La Boheme, The Elixir of Love and Don Giovanni. |
| Jazz Lab Band - Available to any campus student without audition who is interested in gaining experience with jazz performance. Secondary instruments are encouraged in the band and all music education majors are encouraged to participate to gain jazz experience. | |

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