Basically, one single trumpet is much much louder than one single violin. So, you generally balance the sound out by adding more violins.
Second reason: one single violin can sound pretty harsh. When you add multiple violins, you end up with a more stable sound. Think of it as adding frequencies together, where all of the frequencies might be off by a hertz or two. Adding enough instruments, the inaccuracy doesn’t matter, because on AVERAGE, the sound will work itself out. This is important for inherently inaccurate instruments like fretless string instruments.
Latest Answers