 Perlmutter continues to perform with his group of four Beethoven's Wig singers.Hailed as opening the door to "serious music" in a way that's fun, Beethoven's Wig is a popular attraction not only with symphony orchestras, but also with college and university ensembles.Perlmutter also presents solo shows, singing Beethoven's Wig songs while accompanying himself on piano, classical guitar and mandolin.