Please could someone remind me how to reference notes and bar / beat numbers. I.e. the short way to say, for example, "E a compound major third above middle C" and "the third beat of bar nine".

No guesses, please - I can do that myself!

Thanks.

Is it not possible to illustrate with the note on a stave?
Otherwise notes are numbered according to octave aren't they? There's probably an illustration of that somewhere.

Something like this.

No, it's to write as text in an e-mail. It's something like E', but I can't remember how to indicate the different octaves.

I use C1, C2, C3, C4(middle C), C5, C6, C7 and C8, etc. So for example "E above middle C" would be E4, then the E an octave higher is E5. Hope that makes sense.

Thanks. I've just discovered it's Helmholtz notation I'm thinking of, but this (apparently called scientific pitch notation) works just as well.

Now, how about beat / bar numbers? Anyone?

I'm not sure whether there's a standard way of notating beat/bar numbers. How about "E a compound major third above middle C" and "the third beat of bar nine" = E5(b9-3)? I think you might need to make up your own shorthand system here.

I'm fairly sure I've seen it somewhere. 9:3, possibly?