Mazzeo system

There are advantages and disadvantages with the design of the Mazzeo throat-tone Bb mechanism. The main advantage is a wonderfully clear Bb that can be fingered multiple ways. The main disadvantage is that one can then no longer use the resonance fingerings that help intonation so much when playing softly.1960 Selmer ad:Click on the image to view it, or the full resolution copy is attached.