Yamaha Styles:

Yes the Wersi will play them directly WITHOUT conversion up to the T2, (OAS 7 instruments require the OAA which has been standard for a number of years and is also available as a cost option upgrade for earlier OAS 7 instruments) however it does not come with any Yamaha styles, these have to be provided by the user.

Yamaha Mega Voices, Sounds & Drums:

Wersi has programmed its own voice set to match the Yamaha format, (They are not copied (Sampled) from a Yamaha) however because the Yamaha & Wersi use different sound engines they will never sound exactly the same, in addition they are also the programmers interpretation of the Yamaha sounds, so while the styles are the same, only the user can decide whether it suits them or not. (Remember many like Yamaha styles but not necessarily the smooth CD sound of a Yamaha)

All modern arranger keyboards are software NOT hardware; however they are closed systems that can only work on one specific type of hardware (Which normally in itself has limited expansion headroom) which cannot be upgraded when new features require an upgrade. (Hence you have to buy a new keyboard to get an upgrade of what went before)

The fact that nothing is copied sampled or supplied (Unless the dealer decides to throw some styles in) means there is no infringement of other manufactures copyrights.

You will also see on any full Wersi information brochure etc. that it does say that Yamaha, Akai and VST are the copyright of their respective companies.

NOTE: I am not a legal expert, but all the dealers, programmers and manufactures I have spoken to, have said exactly the same as I have said above.

Hope this makes things a bit clearer

Bill