Articles about musical instruments of all kinds - from violins to drums to guitars to pianos to keyboards to saxes to trumpets to... home :: tubas How to select a tuba TUNE on to TUBAS Tuba can simply be explained as a music instrument that produces sweet and melodious tunes. It has a cone shaped bore, with a big mouthpiece (shape of a cup), flashing bells, and 2 to 6 valves. Though tuba is quite big in size, the sound and music produced by it is very soft an..