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| | Philip Tagg | Pitch - EPMOW entry (2001) |
 | | Pitch, therefore, most frequently refers to the position of a note’s perceived fundamental on the axis of low to high frequency. |
 | | Until the nineteenth century, when the fixed pitch of a converged on a range between 410 and 450 Hz, keyboard players would have to transpose, wind instrumentalists take extra lengths of tubing on their travels, and string players radically retune, all in accordance with the local norm. |
 | | G, D, A or E) is heard a semitone higher or lower than concert pitch: a simple tune in, say, G major may then be heard, and its constituent notes seen, as if it were in G$ (key signature of six flats) or G# (seven sharps, of which one double). |
| www.tagg.org /articles/epmow/pitch.html (851 words) |
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