First the observed phenomena: When I tried all the sounds I came across sax and flute ... which sounded quite disappointing (far away). However I knew from some online material that there is a better reed sound for the PX-560 ... but how? Then, one day I had it: The sax suddenly sounded great ... immediately had to play the Pink Panther with it ... phantastic. Next day the great sound was gone ... and no way to fix it. What happened?   Meanwhile I know how to fix the broken reed sounds