The French Horn is often played with the right hand inside the bell. It is also said to be the most difficult instrument to play.
The trumpet plays high brassy notes. An optional mute can make the trumpet sound completely different. Many great jazz players have been trumpet players.
The tuba is the lowest instrument in the whole brass section. The tuba is used a lot in marches and other compositions where it is important to have a strong beat.
The trombone has the the greatest note range out of all the brass because of its slide. The 'bone is an essential part of any big band group.