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English Pitch Notation |
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Pitch Notation Keyboard & Piano Key Frequencies
By Brandy Kraemer, About.com Guide
English Pitch Notation Keyboard
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English Variation of Helmholtz Notation
The English system is almost exactly like Helmholtz pitch, except in the lowest octaves:
- AAA is Aii in Helmholtz; AA is Ai
The rest of the keys are labeled similarly, but usually use numbers instead of primes (′′) or letters (iii). Note the switch from capital to lowercase letters at bass C.