Just to let you know someone elsewhere gave me the right question to sort me out. I was asked "Do both cables work simultaneously when using other software e.g. If you
connect a keyboard's midi out to the soundcard's midi in, and the sound card's midi out to a tone module's midi in, can you play sounds on the tone module with the keyoard?"
They didn't. I actually need to not be on MPU401 for the Input. Only the output. Once I was able to work out what worked I was able to apply it to the QY Data program