If you have access to a GM PC table (one here:
http://en.wikipedia.org/wiki/General_MIDI ) you can at least find out what sound roughly the track is supposed to be, but modern arrangers are now up into the thousands of sounds, so really, only a T2 PC change list will get it spot on. Try this:
http://www.manualowl.com/m/Yamaha/Tyros2/Manual/152931?page=70
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An arranger is just a tool. What matters is what you build with it..!