Answers from Confessions of an IC Music junkie
- The cornet has as much tubing as the trumpet but it is "wrapped" tighter so it looks smaller. It also has a narrower bore by the mouthpiece, giving it a more cylindrical taper than a trumpet. Cornets are mellower and softer in sound and were used primarily in the brass bands and early professional bands of the 19th century and early 20th century.
- Composers sometimes write the cornet parts a bit more melodically and the trumpet parts for more bright, fanfare-type parts. This has become more tradition than logic. All trumpet majors study on trumpet these days; there are no cornet majors in the music school. Trumpet players usually just play the cornet parts on their trumpets, but there are exceptions.
- There are levers on the top and foot pedals that work like the accelerator pedal on a car. The more you push down, the higher it goes.
- They are an octave apart. Tubas have exactly two times the tubing of a euphonium.