The 631G is the traditional Yamaha flugelhorn used by many of the world's leading musicians. The tone is characterized by an extremely round, mellow sound with an abundance of tonal color. It features a gold-brass bell for a soft dark sound and a beautiful lacquer finish.
- Level: Professional Flugelhorn
- Key of: Bb
- Bore: 0.433"
- Bell Diameter: Bell Diameter
- Leadpipe: Gold Brass
- Body Material: Yellow Brass
- Weight: Medium
- Key Buttons: Mother of pearl
- Finish: Clear Lacquer
- Pistons/Valves: Monel
- Mouthpiece: 11F4
- Features: 3rd valve slide trigger Vertical slides Moveable mouthpiece receiver
