If the legacy strings on the PSR include the SoloViolin voice nos. 0,112,41 the latter provides a good basis for a very good violin. I have used it on Genos and have so far found it more useful than the later solo violin offerings. However it does require use of DSP to bring the sounds out of their rather subdued default properties. Also I believe the PSR may not have Aftertouch which if correct would limit the ability for playing it with maximum expression (ie. varying volume and vibrato while playing) .
If you want to experiment, select the legacy voice and try allocating various DSP's to it from the available ones in the Distortion category to hear how they sound eg. Comp+OD+Tmp Delay 4 might be a good one to try. You may wish to tweak EQ, Attack and other settings to get closer to what you want.
The DSP I use on Genos is Multi FX Oldies Delay, but I also alter the DSP parameters to get the best out of it plus voice edit tweaks. I am not sure:
1. If your psr has that or
2. Whether your PSR allows edited parameters to be saved and reloaded.
If you want to check it out I could post the Genos voice file in this thread assuming the format won't be rejected by the PSR
.
John