On the arranger boards, I went from a Yamaha PSR-3000 to a PSR-SX900, and a lot has changed in those 10 years, yet a lot has remained the same.

More styles to pick from, and yes they sound "richer", "fuller" and drums are better, yet it's almost like a "been there done that" with quite of few of the styles that seem to be on every Yamaha arranger forever. On a side note, I do not like how they downsized style category. THAT they should have left alone, having more styles in less category's makes no sense. And whatever happened to audio styles? For whatever reason, Yamaha kinda just let that die.

Voices are much improved, again definitely more "richer and fuller" . Guitars on a Yamaha sound just awesome, I can't imagine any arranger sounding better. Piano's and Organs are also top notch and a big step up from the 3000. Adding a 3rd right hand voice was long overdue on Yamaha MOTL arrangers, makes a huge difference in layering voices. I find myself using OTS less often, and just wing it with my own setup.

Pads are better, chord looper (finally) is a nice feature, touchscreen (finally) is something that once you have, you'll never go back, and Bluetooth is a nice added addition.

Lot's of upgrade improvements in 10 years, Yamaha has kept some of it's tried and true stuff, and perhaps that's good, and they seem slow to change, but with the SX-900 vs any previous PSR line, it's a huge step forward that was long over due.

Sorry, didn't mean to go off on a review of the SX-900, so to Diki's main point in how we use these new advances to sound more human? I like to edit styles, many times minimize or eliminate parts of the style, increase drum and bass volume, and use less OTS, and stick to a simple "more human" simple approach. But these are arrangers, and it's also fun to just use everything full blast as pre-loaded by Yamaha. It may sound less human, but isn't that what's great about Arrangers, the ability to sound simple, or to simply sound out!