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Idea Transcript


Bkaa Dal Corti* Quarterly No. 54 January 1989

FOMRHI Quarterly BULLETIN 54

6

Bulletin Supplement

8

Course: Applied Conservation Technology, Dundee

9

New Acquisitions to the Kenneth G. Fiske Museum

11

Plans: Italian Stringed Instruments: The Shrine t o Music Museum

14

Music and Book News

15

Membership List Supplement

67

COMMUNICATIONS

894- REVIEWS: Manual or Method of Instruction for playing the Welsh 895 Harp, by E. Roberts (reprint of 1902 print of mid-19th century manuscript)} Notes on some Journals: Harpsichord & Fortepiano Magazine (Oct. '88), Larigot no. 2 (May '88), Galpin Sodety Journal XLI C88), American Musical Instrument Sodety Journal XIII C87), Early Music \-ui6/r *-•>

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Document C

9."Descriptions des Machines et Procedes specifies d'Invention", Serie 1, vol.11, Paris, ISIS, p.242. 10 id. p.246 1 I note 1, p.381.

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50

I underlined in the above French quotation what is important for us: first, "raised at present concert pitch". A proof that piano-fortes were at a lower pitch in former times in Paris! From Mr. Prony's long footnote he added to the paragraph 1256 of his "Mecanique analytique" published in Paris in 1815, we learn that the "concert pitch" was around A-440 [extreme values calculated by the scholar: A-441 - A-435. "L'ut, dont il s'agit ici, est celui du ton d'orchestre actuel, plus haut d'un demi-ton, ou environ 1/12° d'octave, que l'ut de 1'ancien ton d'eglise..."](1 2). (I shall come back onto this interesting source later). secondly, "the wire usually employed by the makers". Here we cannot decide whether Nuremberg or Berlin is meant, knowing that both were available in Paris (s. Pleyel's letter above). The calculations Since string lengths and frequencies are given there, we can use the table calculate the diameters of the strings put on by Schmidt. How can we calculate the diameter values? This is not difficult for n°3 and n°2 of iron of Schmidt's table. As regards the brass diameter (n°0), we see that it has not been used on this instrument. and

We find the following values for the diameters of the iron wire n°3

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