I wonder how they create those demos? Is it a recording that's in Tyros or real style?

Also, I heard Ibiza demo, very nice trance demo from Tyros; there is a cool drum-roll.. Does it mean that I'll be able to create that types of drum rolls or it was only in demo?

I had Roland before and they always have this nice drum-roll feature where you can specify the roll you want (8/32, 16/32 and so on).

I wonder if Yamaha PSR arrangers have this feature too. It's important for dance music.

Anyone knows?

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New Yorker