I have recently purchased a 20-note keyless McCarthy organ that needed
tuning.  Although I have a scale book that size, it is marked up for
Trueman organs and the McCarthy pipes are not playing the notes written
on them.   Can someone let me know the scale the pipes are actually
playing, please, so I can mark up the scale book correctly and get it
playing again.

Thanks
Gary Hall

 [ Since someday he may obtain proper music books for the McCarthy
 [ organ, Gary will need the scales for both McCarthy and Trueman
 [ book music.  -- Robbie