The Zinger / Wah Wah (Aluminum) The latest mute from Trumcor, "The Zinger." This is a newly designed aluminum Harmon-style mute. It has good intonation and resonates well from low to high frequencies without unevenness. Compared to previous models, the cork part is slightly thinner, providing a more stable fit and making it less likely to fall out. It became a hot topic overnight due to its use by leading players such as Doc Severinsen and Wayne Bergeron. It has an overwhelming response, and the sound has a moderate thickness. It also has good monitoring capabilities, providing optimal "feedback" even in large ensembles like big bands.