I have four sopranos
1924 Buescher true tone low pitch C silver plate
Yanagisawa Vito ("Whitehall" S-6)
Yanagisawa 800/880
Yamaha 475
Do I need different fingering charts for 1/4 tones for each? The hardest
will be the 1924 Buescher as its intonation is already challenged. However,
I have wondered whether it could be "tempered"or prepared as I have a
penchant for maqam as I love Arabic, Indian and Turkish modes