I am old and play as a one man band for WWII vets, retirement centers, senior citizen centers and nursing homes. My wife sings all the old standards. I am using MIDI files for big band accompaniment, cutting out the piano, but I would like to use the keyboard only, it is more flexible that way. I have tried to find a good "big band" sound using tone editor and all the other goodies on the WK-7500, but not much luck. Is there anyone who may have achieved that sound? I know other keyboards do, especially the higher end Yamahas and some Rolands. Appreciate your help! Thanks