Cudek is a performer specializing in guitar, recorder, crumhorn, bass viol, and percussion. Copley played a variety of woodwind instruments, including flute, recorder, ocarina, and crumhorn. The equation of the crumhorn with the lituus was especially strong among German writers. The sound is a similar to the crumhorn, but is softer. The crumhorn is a "capped reed" instrument. The crumhorn was especially associated with the lituus because of the similarity of its shape. Crumhorn Labs and Hauptwerk were acquired by Brett Milan of Milan Digital Audio LLC.