Originally Posted by screamingmorris

I'm 50 years old, and back when I was a kid the C above the staff (2 octaves above piano Middle C) was High C, the beginning of the "High's", and the notes above it were High ***..., then the next C was a Double High C, the beginning of the "Double High's", and the notes above it were Double High ***...

But many teenagers in the trumpet forums lately have been calling High F's "Double F's".
And some pro's have posted somewhere that the Bb below Double C can be called Double Bb for some reason I don't understand because they don't call the G below that a "Double G".
But someone from Germany explained in a forum within the last few months what a European teenager had meant when he referred to a "Quadruple C", explaining that some Europeans use a nomenclature in which a Double C or whatever is called a Quadruple C, apparently because they do the figuring from piano middle C even though we are talking about playing trumpet?

- morris