Nigel got it right, Thanks ! don't like Arrangers, go over to Piano World.
I'm not playing an Arranger as my first choice but as a necessity if I want to keep working "live" . I can play Piano pretty well but can you find work doing it ? Very little, and the guys going for the few openings are sometimes scary good, out of my league. So I use an Arranger to entertain the crowds. I spend countless hours editing it to sound more like a live band and yes I sing over it. If you don't sing = you don't work period.
All the pretty melodies and sounds won't get you any more jobs. Singing and entertaining is where its at. And oh yea, you better play a lot of dance music