Djay,
I sell the PA1XPRO, the Tyros2 and the G70. You are correct that the Korg is the most often sold model at my store for customers wishing to mostly do Ethnic Music. Because Korg offers plug in boards that are being manufactured all over the world, specific sounds and loops are being made available. Also, because of it's ability to sync loops to styles and actually sample right on the keyboard, it lends itself the best for international music styles. There are also more ethnic drum kits availble then other brands of keyboards. As to it's ease of use, yes, you can learn it's interface very quickly for everyday playing, and when you want to get deep, it allows for this.
Also keep in mind that the PA1Xpro has 76 semi weighted keys compared to the 61 on the Tyros2. If you need custom tunings for your style of music, the Korg has a dedicated "tuning" button which allows for instand changes on any notes on the fly while you are playing and you can store 4 different tunning per style on the 4 one touch buttons.
Because I sell to so many middle eastern, Indian and other nationality musicians, I have found that the PA1Xpro has become the instrument of choice. The Tyros2 does allow you to load samples from a computer, but does not offere internal sampling as the Korg and you must adjust loop tempos, etc. in the computer and not be able to sync right in the keyboard as the Korg can do.
There are also not many ethnic sounds and only 1 middle eastern drum kit in the Tyros2 and there are dozens of ethnic sounds and several ethnic drum sets for the Korg. Korg offers a web site at
www.korgpa.com where you can download free styles and sounds and the expansion boards are available in different countries with appropriate sounds for specific ethnic sounds and styles.
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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com