Mozart was a composer in classical period. By that time, there were no valves and mutes in brass instruments. Therefore they had one playable overtone scale per instrument.
Probably not. Old orchestral pieces like that usually keep horn parts written in their original keys, and it's up to the player to transpose as needed.
basset horn
You would change your embrochure to hit the notes.
There is no thumb valve on a single horn. However, the valve on a double horn is used to make the notes easier to play. You can play higher and lower notes, and have more diverse fingerings.
Like a large fog horn. Deep notes and loud, super loud
Ernest Horn has written: 'A basic writing vocabulary'
staccatos and tenutos
How do you make a trombone sound like a french horn? Put your hand in the bell and play all of the notes wrong. This is coming from a horn player, btw
The English Horn is a variant of the Oboe. It has a double reed and is pitched five notes lower then the oboe (F).
The brass family such as trumpet, cornet, french horn, euphonium and tuba.
You may need to transpose up or down if you have singers accompanying you.
For stopping, the note will have a + above it, and an o for open.