The Brass Instruments An orchestra usually uses four types of brass instruments. Masahide Kanzaki 389 369 0,0 220,156 Horn photo a brass musical instrument consisting of a conical tube that is coiled into a spiral and played by means of valves 0,160 220,230 Trumpet photo a brass musical instrument with a brilliant tone; has a narrow tube and a flared bell and is played by means of valves 0,232 380,372 Trombone photo a brass instrument consisting of a long tube whose length can be varied by a U-shaped slide 223,0 393,270 Tuba photo the lowest brass wind instrument Masahide Kanzaki Masahide Kanzaki