Antoine Courtois AC131BR10 Legend Eb Alto Trombone - Trill Valve
The Courtois AC131BR Prestige Alto Trombone has all the same features of the AC131R, but adds a trill key feature. A .464-inch to .492-inch dual bore with a detachable mouthpipe design creates excellent response and tone, while a 7-inch Rose brass bell for adds warmth and richness to the sound.
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