“The MA9 tuning is a modified 440 Es based sweetener.
Major 3rd interval beats are minimized on many triads using strings 2 and 7. A compensator on the A pedal, lowering 1/7 to -13 further enhances the tuning as well...Glad you guys like it!...“
Posted by Mickey Adams on US forum. The settings were devised by Jody Carver in Texas and put on the Peterson site by Mickey Adams.
If anyone has a problem with it contact Sue Haslam at Peterson, she will talk you through it.




