Hi,
I have to say I have never understood, why someone has to detune (change the main a’) when he/she can’t tune and you have to correct his/her tuning by using VariAudio. As an interpreter either I can tune and I can hear it, then I don’t need VariAudio, or I don’t hear it and (maybe) I can’t tune, then I don’t have to tune out of 440Hz.
Sorry, I’m always just wondering…