He has been working for six decades in performance art, as a designer of scenery, costumes, lighting, concerts, performance space, and outdoor facilities, as well as a producer and as a studio artist. His credits include designs for Broadway (The Happy Time); off-Broadway (War and Peace); The Metropolitan Opera (Les Troyens); The New York Philharmonic (The Rugs Concerts, The Promenades Concerts); The Boston Symphony (Pops); The Los Angeles Symphony (Hollywood Bowl); and the Dallas Symphony Orchestra. He helped found regional theatres (the Mark Taper Forum and the Pittsburgh Public Theatre) and consulted on TV design (The Merv Griffin Show, The ABC World News with Peter Jennings). He has produced large outdoor music festivals featuring artists such as the Dixie Chicks, Willie Nelson, Van Cliburn and Mstislav Rostropovich. He has also produced large exhibitions (The Smithsonian Institution) and has consulted on the design of theatres and concert performance spaces including the Carlos Moseley Music Pavilion in Central Park, NY, which he conceived.
The Library at Furman University in Greenville, SC is currently digitizing all of his projects for online availability as THE PETER WEXLER DIGITAL MUSEUM AT FURMAN UNIVERSITY.