The horn (commonly referred to as French horn) is a musical instrument in the brass family. It has the longest piping in the brass family, excluding obscure instruments. It also has one of the largest ranges of brass instruments, rivaling that of the trumpet or trombone.
Horns generally come in two musical keys:
- Concert F, making the Concert Bb scale an F scale
- Concert Bb, making the Concert Bb scale a C scale
Most modern horns are double horns, in that they are a built as a combination of the two keys. In these horns, an additional valve is used to switch from one horn to the other.
An experienced horn player on an F French Horn can easily play from a Pedal-Tone F (directly below the bottom line of the bass clef) to a high F (far above the top of the treble clef's top line). This gives you an idea of its range.