All the styles Yamaha makes, you can play them in the Tyros 4,(does not matter what model was made for, the difference is that the sound mapping may not be best for better sound).

What you can NOT do, is play a Tyros 4 style in a previous model or smaller model like a Tyros 2 or PSR 3000....since the Tyros 4 use now the S.A.2 on the styles, and previous models to begin do not have SA2, etc.
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mdorantes