Dear Ponderers,
Down under here in Australia we use A4
and A3. A4 is just too small for piano music, and A3 is
generally too big to fit on the music desk comfortably.
The ideal size for me is Klavierformat
(235x310mm) which is the standard size of editions such as Henle
and so on. This paper size is unobtainable except as a printer’s
trim size. The next best thing is B4.
Consumer A3 printers will take B4
paper. But I am completely unable to find a source of cut B4 in
Australia or online, as a retail customer, in standard wrapped
reams, or indeed any quantity.