Composer-performer Joni Mitchell will appear as a guest artist with the Los Angeles Philharmonic Orchestra under the direction of Lawrence Foster in a special "50th Anniversary concert" at 4:30 p.m. Oct. 19 in Pauley Pavilion.

The concert, sponsored by the Committee on Fine Arts Production (CFAP), will climax UCLA's open house.

Miss Mitchell, a native of Canada, has written more than 60 songs, including "Both Sides Now" and "Circle Game."

The program will include Charles Ives' "Three Pieces in New England," Aaron Copland's "El Salon Mexico" and several traditional songs by Miss Mitchell arranged for soloist and orchestra.