Pre recorded Loops and Software synths are far more suited and (far more original capable) than Arranger Styles. I find even the vast library of Yamaha lacking for those who want to do Hip Hop Trace, Garage and the myriad of other modern MTV Grammy Award type loop style recordings. A PC loops and software synths along with an Akai beat box will go a lot farther and a lot longer in creating a host of original music in those genres.

I was pitching a PSR900 to a rapper and sold it based on the idea that he could use NON traditional loops like Schalgers/Big Band and world styles as a base. No one is doing that. Sometimes one needs to Take a risk and think outside the box.