Dale Clevenger, longtime principal horn of the Chicago Symphony Orchestra, will be among the participants in the Intermountain Horn Workshop, set Feb. 23 and 24 at the University of Utah.

Following an 8:30 a.m. check-in at the Museum of Fine Arts, events begin Saturday, Feb. 23, with a 9 a.m. concert featuring horn choirs from the U. and Brigham Young University and past and present Utah Symphony horn sections. Clevenger and Gaylen Hatton will conduct.Clevenger will then present a lecture and master class at 10 a.m., followed by lunch, a solo competition at 1 p.m. and a 3 p.m. recital by Clevenger and Utah Symphony horns Lou Humphries, Sue Hudson, Verl Ormsby and William Barnewitz. Included will be transcriptions from Bach and Beethoven. In addition Clevenger will solo in the Dukas "Villanelle" and Franz Strauss' "Romanze."

Participants will then attend that evening's Utah Symphony concert, at which principal horn Shelley Showers will solo in the Concerto No. 1 in E flat major by Richard Strauss. (See concert calendar.)

Events Sunday, again at the Museum of Fine Arts, will include a 9 a.m. panel discussion, a 10 a.m. winners' recital, a mock audition at 11 a.m. and the presentation of awards and mass ensemble at noon.

Also in attendance will be Los Angeles hornmaker Mark Atkinson, who will also lecture Saturday, and representatives from Yamaha.

Cost of the entire workshop is $20, with individual events priced at $5, including the Saturday afternoon recital. For information call 487-4416 or 531-6892.