There are four options for note conventions in the "Misc" menu: "English" (default), "French", "Indian" and "Key numbers". The convention is saved in the "-se.<filename>" settings, the name of which may appear on top of a grammar or data file. The default convention is saved in "-se.startup".

Changing the convention brings to front a keyboard dialog, for instance the one shown Fig.1 (French-Italian convention).

The selected names will be the ones used for displaying items. Alternate names (e.g. "reb" instead of "do#") are also recognised when parsing grammars, data or scripts. The selection of names is saved in the "-se.<filename> " settings file.

Octaves are numbered as per the convention:

middle C = C4 = do3 = sa4 = MIDI key number 60

If A4 = la3 = dha4 = 440Hz, then C0 (MIDI key 12) is approximately 16Hz whereas C1 or do1 (MIDI key 24) comes to about 32Hz ( le do grave du violoncelle ). Since these frequencies are low, MIDI keys 0 to 31 are rarely used for tonal data, but they might be reserved to other types of messages. The octave starting with MIDI key 0 is notated:

C00 Db00 D00...

do000 reb000 re000...

sa00 rek00 re00

whereas the one starting with MIDI key 12 is notated:

C0 Db0 D0...

do00 reb00 re00...

sa0 rek0 re0

This convention was not the same in previous versions of BP2. See §4.8 for customizing it.