A Brass Band
One would be the Sousaphone.
Tuning a guitar is very easy, especially if you have an ear for it after playing brass instruments.
Those are all brass instruments, but only the bugle is not from the tuba family.
The only common thing between all brass instruments are that they are made of at least half brass and they all need a mouth piece. There is also the same breathing techniques, though they can differ. For example, the theory that everything that is played is a long tone. Please note that I am not counting woodwind instruments, like saxophone, as brass instruments. If I did so there would be nothing in common with all brass instruments. I hope this helped!
Almost all brass instruments have movable tuning slides, but the only one that is played by moving a slide is the trombone.
All of these instruments are constructed in wood. This is the only similarity.
Yes, but there are trombones that do have valves. Bugles- no valves
Brass instruments can have valves or a slide, but not reeds. Brass instruments create sound by the vibrating of the player's embouchure in a mouthpiece, and the valves and slides on the instrument change the length of the tubing in the instrument which affects the pitch of the notes produced. Reeds are used in woodwind instruments to vibrate to produce a sound instead of using a mouthpiece like in brass instruments.
One difference is that woodwind instruments use a wooden reed to form the mouthpiece. The reed sits at the back of the mouthpiece (on the bottom lip) and vibrates against the rest of the mouthpiece to help create the sound. Brass and woodwind instruments are both played by blowing into them (or over them in the case of the flute). Brass instruments do not have any moving parts that vibrate to create a sound. They merely amplify the sound created by the players lips vibrating. Woodwind instruments have a reed that vibrates except for the flute which splits a column of air to make vibrations. Brass instruments change their pitch by changing the length of tubing which the air passes through. Woodwind instruments change their pitch by changing the where the air escapes from the instrument.
Technically, yes it is. It's a brass instrument in which the movement of blown air produces the sound. NB. 'Wind instrument' is not a usual term as it is too vague. The more common terms are woodwind or brass.
The trombone is the only instrument in the brass section with no keys or valves. It only has a slide.