[sdiy] First C key name and MIDI note values of 32 keys church organ pedal board ?

[Florian Anwander]

The most important information is:  In the 8' setting, the pitch of an 
organ corresponds to the notated notes.

This means: if the sound generator produces a 260Hz tone with an 
incoming MIDI note 36 and an 8' setting, then it should produce a 65Hz 
tone with the 32' setting with an incoming MIDI note 36.

On large concert organs, the frequency of the lowest note with an 8' 
setting is usually 64Hz (see 
https://die--orgelseite-de.translate.goog/fusszahlen.htm?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=wapp) 
. This means: the lowes MIDI-note on the pedal is C1 or MIDI note number 12.


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