'Going Troppo' is an exclusively Australianslang term for 'going crazy'. The popular understanding about it's origin is that it comes from stories of the tropical heat in the northern parts of Australia driving people crazy.
What's Stevo doing? He must be going troppo!
NB: 'Stevo' is pronounced 'Steve-O' it's an Aussienick-name for someone called steven/stephen.
Musical theory is vital knowledge for anyone wishing to compose music involving more than half a dozen instruments. It is recommended knowledge for anyone wishing to arrange music for more than half a dozen instruments. Anyone who writes music for more than about half a dozen instruments without knowledge of musical theory is inevitably either writing an arrangement of a simpler piece or composing modern music.
Serving suggestion: Musical theory best served with at least 2 years experience with actual musical instrument.
John spent two and a half years at the Vienna Conservatorium of Music learning musical theory.