Here is the Yamaha SYXG 50 program.
When you load the program on XP, you will get an error at the end, (The program was originally designed for Windows NT) but you can ignore this and when you restart the computer, you will have a Yamaha XG player available. (If you want to use it in other programs, don’t forget to select it first, otherwise the program will open the Microsoft player)
As when loading any program, Create a Restore Point First.

Bill
http://download.yousendit.com/040DAD65171DFE5C