CarolBrass®
Quarter-Tone trumpet, is 4th valve styled trumpet based
on model CTR-5200 seres, with additional 4th valve (lower
the pitch by 25%), extra-long 5.25" diameter standard thinckness
yellow brass bell, 2 braces heavy weight main tuning slide,
nickel silver outer slide/ yellow brass inner slide, larger
leadpipe bore, ML bore, Lee II amado waterkey, and super
heavy finger buttons/ valve caps, and total raw pure brass
finishing.
