| Title: | GUITARnotes - Where Every Note has Emotion | 
| Notice: | Discussion of the finer stringed instruments | 
| Moderator: | KDX200::COOPER | 
| Created: | Thu Aug 14 1986 | 
| Last Modified: | Fri Jun 06 1997 | 
| Last Successful Update: | Fri Jun 06 1997 | 
| Number of topics: | 3280 | 
| Total number of notes: | 61432 | 
    Hi, I'm quite interested in harmonic theory etc and I'd like to
    know how the frequencies of each note are related.
    
    Can anyone provide me with a list of example frequencies for all
    twelve notes ( i.e. A = 440 Hz, A# = ??? etc... ).
    
    Also, how can you compute the frequency difference between notes ? e.g.
    what happens to the frequency when you raise pitch by, say, a P4 ?
    
    Any help, or pointers to references ( this may not even be the right
    place to ask (8^) ) will be appreciated.
    
    Thanks in advance, Dave.
| T.R | Title | User | Personal Name | Date | Lines | 
|---|---|---|---|---|---|
| 771.1 | Physics problem | ANT::JACQUES | Fri Aug 12 1988 08:21 | 9 | |
|     I'll have to check through my Physics book. I have a book at home
    entitled "The Physics of Music". It's a little paperback book.
    I think this was covered in Heat, Light, and Sound (Physics II),
    but I don't remember the formulas off hand. 
    
    Any particular reason you ask, or is it just for curiousity sake?
    
    Mark
    
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| 771.2 | Factor of 12th root of 2. | FLOWER::JASNIEWSKI | Mon Aug 15 1988 10:07 | 10 | |
|     
    	Each note in a chromatic scale is seperated in frequency by
    a multiple which is the twelth root of 2. The way you get to A#
    from A=440hz is to multiply 440 by 12 Root 2. To get to G# from
    A=440, divide by the 12 Root 2 factor.
    
    	You can generate all the frequencies in this way -
    
    	Joe Jas
     
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| 771.3 | Now, where's my calculator... | FNYADG::PELLATT | Just what is it with Turkey ? | Tue Aug 16 1988 05:31 | 7 | 
|     Re .2
    
    Aha ! Should've been obvious really ! That's what I was after...
    
    Thanks Joe,
    
    Dave.
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