The Silent Brass™ is a sound-damping system for brass instruments that Yamaha first developed in 1995. The latest series of Silent Brass™ products is a great leap forward in terms of compactness, and offers a more comfortable playing experience. It is so compact, in fact, that a trumpet can be stored in its case with the Pickup Mute™ inserted (some models excepted). While the Pickup Mute™ is more compact and fits into a tighter space, we made ease of handling a high priority. We paid special attention to the relationship between the fingers when firmly grasping the Pickup Mute™. When firmly grasping an object, the thumb is typically opposite the other four fingers. With a 70-mm diameter trumpet, that finger positioning led us to a regular seven-pointed star with a curved outline, and with a 110-mm diameter trombone, french horn, or flugelhorn, we found that a regular nine-pointed star with a curved outline worked best. These shapes are suited to inserting or removing the Pickup Mute™ while turning it. The distinctive silhouette is the signature of the new Silent Brass™ models. The Personal Studio™, meanwhile, has a design that reflects its supporting role, with an utterly rectilinear shape that houses its working parts in the smallest space possible. The contrast between curved and straight lines thus creates a geometric harmony. The Pickup Mute™, with a self-explanatory shape that invites the grasp-and-turn action, is a rare instance of a design idea that was translated from initial concept to final product without change, and in that regard it represents a special clarity of design.