I'm a one man band, so no one is going to be affected by my 432 HZ tuning other than the audience, but since it requires a lot of work, I will keep it at 440 Hz. I just wanted to know what's the reason that is changing from a 432 to a 440 when a MIDI file is being played. Obviously when I play with other musicians I don't expect them to down tune to 432Hz, I keep it at 440.:)