Can anyone please answer these questions for me:

- optional ew cards can be installed on kn7000... What type of sounds in there(techno/folk/guitars/piano/drum kits)? And how many?
- is kn7000/Tyros suitable for dance/techno music?
- does it have arrpegitaor? (I know Tyros does not have it)
- how many drum kits dedicated to techno/dance music?
- availability in US?
- approximate price?

Thanks a lot!

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New Yorker