I came into my store this morning and figured out what was going on with the SD1 Program GrandPiano. There are two grandpiano samples in the hard drive. One is GrandPiano100 and GrandPiano200. I thought these were for two totally different pianos but what I realized is that the program Grand Piano was created using both the samples and you need to load both. If you only load one, the other location in the program is still empty and if you call up another program using a voice in the same empty location as the grandpiano, then that sound goes into the empty location until you choose another sound. By loading both pianos, which Ketron expected you to do, but doesn't have directions stating this, when you now switch to any other program and return to the grand piano, only the grand piano is heard. Remember, you can do an auto load each time you turn on the SD1plus or you can erase this program and put something else in instead.
George Kaye
Kaye's Music Scene
Reseda, California