I have sat in on pit performances of Matilda the Musical, just watching the band, for fun. The one time I did it back in Stratford, so long ago now, when it was "Matilda, a Musical" in the tin shed that is/was the Courtyard, when it was just a wee little show made with love and sellotape, I was amazed to watch the interaction between the MD's conducting, with that typical waving of the arms to more or less indicate a beat, and how the different musicians all interpreted those movements in different ways, due, they said afterwards, to the peculiarities of their particular instrument (cello, horns, flute, drums, etc.). To me it [i]looked[/i] an absolute chaos, and I couldn't follow any of it, but it [i]sounded[/i] perfect.
Music really is a foreign language.