What is the difference between a high note horn and low horn?

Range: High note horns have a higher range than low horns, and can produce notes that are higher in pitch.

Length: High note horns are typically shorter in length than low horns.

Bore size: High note horns have a smaller bore size than low horns. This allows for faster air movement, which is necessary to produce higher pitches.

Timbre: High note horns have a brighter, more piercing sound than low horns.

Use: High note horns are used for playing melodies and solos, while low horns are used for playing bass lines and harmonies.