Bells up

Raising the bell into the air. Notated with a verbal instruction. Very striking when done by the whole horn section together, but primarily a theatrical effect.
Bells up:

glissando

Glissando

A slide in pitch between notes. Valve/lip glissando involves hitting as many harmonics as possible between two pitches. This is the standard glissando, but it is also possible to use the hand to slide a semitone.
Horn Glissandi
Glissando:
Hand glissando:

trills

Trills

Semitone trills work anywhere on the instrument. Whole tone trills can be more difficult, especially in the low to middle register. Lip trills between two harmonics work well in the upper and middle registers.
Trills:

tremolo

Tremolo or "Shake"

Tremolos are not really feasible on the horn.
Tremolos:



Cuivré

A brassy sound. Notated with a verbal instruction. (Germ. schmettern It. produrre suoni metallici). Use for limited periods only.
Cuivré:

The Orchestra: A User's Manual is a free resource and will remain so. It still receives between 8,000 and 16,000 unique visits per month from all over the world. See the testimonials. Thanks to all the donations, I have been able to create this responsive re-design. But the movies and sound clips recorded in 2004 do show their age. I would really like to re-record everything and add many more techniques, especially for solo and ensemble writing. I estimate this will cost around £30,000. If you know a source of such funds, please contact me: a.hugill [at] bathspa.ac.uk