Several methods exist for translating music notes into letters—that is, of indicating a music note’s name and octave with letters, rather than a musical staff. The two most widely used forms of notating musical pitches with letters are Helmholtz pitch notation and scientific pitch notation (also called note-octave notation or American standard notation). Helmholtz notation uses a combination of lower case and capital letters and subscript or superscript lower case “i”s to represent octaves (single quotation marks sometimes replace the “i”s), while scientific notation uses numbers.
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Things you need
- Music in staff notation
Find the first note in staff notation that you wish to translate into a letter. Take note of both the clef (treble, bass or one of the C clefs) and the instrument for which the music is written. If it is a transposing instrument (see Resources), you will have to transpose the written note to its concert pitch. For example, a C natural written for a B flat clarinet will actually sound as a B flat, a minor second below the written pitch.
Determine the note's octave. This, too, requires understanding of the instrument, as music is often notated in the easiest octave to read, rather than the actual octave played. For example, music for bass violin is written an octave higher than it sounds. Music for tenor singers should have a small “8” at the bottom of the treble clef to denote that the music is an octave lower than written, but often does not; the notes sound an octave lower than written regardless.
Translate the pitch information into Helmholtz or scientific notation. In scientific notation, Middle C (the C right below the treble clef) is C4; an octave lower is C3, an octave higher is C5, and so on. In Helmholtz notation, Middle C is c' or c(superscript i). An octave higher is c'' and so on. The three octaves below it, however, are (in order) c, C and CC or C(subscript i).
Tips and warnings
- Although note names go from A to G, octaves begin with C. Therefore, the A directly below Middle C is called A3 or a, and the A directly above Middle C is called A4 or a'.
- Since Helmholtz notation uses lower case letters, avoid using a lower case b in place of a flat sign (?), as it may cause confusion.
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