It's Sunday morning and I just got off the phone with the marketing manager for Yamaha keyboards. He wanted to let me know that prices have not yet been finalized for the 710 and 910 but that delivery would be around October. They are on display at Yamaha's booth but no price information has been announced. Anything is pure speculation at this time. The Tyros 3's retail price has gone up as I stated.
He told me that both displays on the 710 and 910 have been improved. Although the 910 is smaller than the Tyros3, it has the same HD plasma look and the 710 has gone from that bluish color to a High Definition Black and Grey.
Also, the Super Articulation 2 sounds of the Tyros3 are included but no SA buttons are on the 910. However, just like the Tyros3, the voices react differently to your playing style and produce those amazing articulations when played with just the keys and not having to use the two buttons.
Yamaha added the ability to playback MP3's but the audio recording is still wavefile recording and you would need to convert to MP3 in a computer to playback what you've recorded on the 910 and 710.

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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com