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| | MML: Frequency Module |
 | | As the octave is not universal, a more neutral term will be used in MML: noteset, which is not restricted to the 8-note, 2:1 relation set, but is used as a generic term that may as well apply to a 5-note "octave". |
 | | There are different conventions for numbering octaves, such as the Helmholz method, (starting about in the middle of the piano keyboard and numbering outwards, thus a dual method) and the method used by music physicists (starting at one end, the lower end, and numbering serially upward). |
 | | The A notes on beats 1 and 4 are on octave 3, as specified by the noteset attribute; the second beat on octave 4, the third on octave 2. |
| www.musicmarkup.info /modules/frequency (1961 words) |
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