A representation

sign, figure, mark; see representation, symbol.

A brief record

notation, jotting, scribble, reminder, scrawl, annotation, agenda, datum, minute, entry, memorandum, journal, inscription, calendar, diary; see also mark 3, notes, record 1, summary.

A brief communication

dispatch, epistle, announcement; see letter 2, word 3.

A musical tone, or its symbol

tone, key, scale, shape note, interval, degree, step, sharp, flat, natural; see also pitch 3.

Musical notes include: whole note, semibreve, double whole note, breve, half note, minim, quarter note, crotchet, eighth note, quaver, sixteenth note, semiquaver, thirty-second note, demisemiquaver, sixty-fourth note, hemidemisemiquaver, triplet, grace note, appoggiatura.

Paper money

bill, currency, banknote, folding money*, greenback*; see also money 1.

To notice

remark, heed, perceive; see regard 1, see 1.

To record

write down, enter, transcribe; see record 1, write.