Sonic Boom 2020 Ensemble-in-Residence Pacific Baroque Orchestra Harpsichord and Organ Info

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Planning to write a piece to submit to the call for scores for the Sonic Boom 2019 Ensemble-in-Residence Pacific Baroque Orchestra? Here is some information on the Chamber Organ and Harpsichord:

Chamber Organ
By Hellmuth Wolff & Associées, Laval, Quebec, 2001

Bourdon                 8′       bass & treble       treble
Flûtes à cheminée 4′       bass                     bass & treble
Petit Bourdon         2′       bass                    bass & treble
Nazard                   2 2/3′ treble
Sesquialtera          2 2/3′ treble

Transposable keyboard, compass C – d’’’
Variable temperaments; pitches at a= 382 / 415 / 440 / 485 Hz

Edward Turner French Double: 

After the 1769 Taskin in the Russell Collection in Edinburgh. Beautifully resonant instrument. F=ff”’ at A=415. Keyboard shifts to
A=392 and A=440. 8′, 8′, 4′, buff rails for both 8’s. Keys are slightly wider than might
be expected.