One page typescript on the problem of flatness in the pitch of the seventh harmonic when playing brass instruments with detailed discussion of natural harmonic scales and their comparison to the scale of equal temperament. 'BMM' may be 'Brian Manton-Myatt'.
Typescript entitled: "Those flat seventh harmonics!", signed 'BMM'
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Amazon - Marañon Colombia. Arara village (Ticuna) am (30/31)
object | ARC/GUP/001/204
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Hart Museum Visitor Books
object | ARC/HAR/001/172
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35mm slide: Mother and child with a balloon given to them by one of the group
object | ARC/BAL/005/043
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Colour slide of building and blue sky
object | ARC/GUP/006/172
Collection Information
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