1) The closest thing I have to a pure piano style is PianoJazz on this style disk:
http://www.nortonmusic.com/style13.html -- you can also buy it as a single style here
http://www.nortonmusic.com/styledemo.htmlThere are plenty of other styles where you can mute everything but the piano, and since they are MIDI, you can even keep the bass part in and change it to a piano. I've had some good results with that.
2) I don't do custom styles. Between gigging in my band (duo), being the 'band salesman', running all the aspects of Norton Music (accounting, webmaster, maintenance, tech support, and new product development), I just don't have any time or any way I can make a commitment. I haven't watched TV in over 30 years (I'm not complaining - I'd rather live my life by doing things than to live my life vicariously by watching actors pretend to do things).
Right now Leilani and I are working on a half dozen fake disks (including a companion for the Real Book V.6 and the Real Country Book). This has been so time consuming that I haven't worked on any new styles for about 8 months.
Notes