P5-4BG “Butler/Geyer”
- M Bore – (.450”/11.42mm)
- S Bell – (4”/101.60mm) #8 Taper
- (Offered with a single mouthpipe for the key of Bb and A with a cornet receiver.)
The P5-4BG offers a modified slide design originally created for acclaimed trumpet professors Barbara Butler and Charles Geyer, currently on faculty at the Shepherd School of Music at Rice University.
