If you get the Yamaha PSR3000, you will be pleased that you get the same sounds and styles as the Tyros but with the addition of built in speakers and a lighter weight keyboard to carry. Instead of using an internal hard drive on the Tyros (if you added it) you can use a USB thumb drive or a smart media card for lots of additional styles, songs and registrations with the PSR3000. And if you don't want to carry the TC Helicon Voicworks on these smaller single jobs, the PSR3000 as the same vocal harmonizer found in the Tyros. In my store, the PSR1500 has not been a big seller like the PSR3000 because of the better sounds and the mega sounds and styles not in the 1500 but only in the 3000.
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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com