Bernie, one last thing. Comping to an arranger is a little different than say, comping in a piano trio (bass and drums). With the arranger, there will be less 'holes to fill' and it's important that you not COMPETE with the arranger (IOW, don't fill holes that aren't there ). That's why, in most instances, Don's approach of SUPPLEMENTING the arrangement is usually the best approach. Also, EVERY hole doesn't need to be filled. Miles Davis said it best, "sometimes what you DON'T play is as important as what you play" or words to that effect.

Interesting side note: BB King said (in an interview) that he just can't play and sing at the same time....didn't stop him from becoming a legend.

chas