• Key: Bb/F
• Bell: 256 mm (10")  
• Bore:11.89 mm ( .470")
• Full gold brass
• Nickel-Silver slides
  
• Mechanical linkage like French horn 
• Clear lacquered finish

A Wagner tuba is a brass instrument combining elements of a tuba and a horn, invented by Richard Wagner for his *Ring Cycle* operas. It has a conical bore like a tuba but is played with a horn mouthpiece, producing a warm, rich tone that blends the depth of a tuba with the mellowness of a horn. Typically pitched in B♭ or F, it’s used in orchestral settings, especially in Wagner’s works like *Der Ring des Nibelungen*, to create dramatic, heroic, or somber timbres. It’s played by horn players due to its mouthpiece and is less common outside Wagnerian or late-Romantic repertoire.