You could try a couple of things… The first is to add some velocity (maybe about+ 10-15), which will make the Drummer hit a little harder, and those jazz kits respond to that well. You can do this in the make up tools, either to the whole kit, or to individual drums you would just like to boost a bit.

The other thing is to add some EQ to the kit at the make up tools and boost all the bands. Experiment with the parametric EQ, sweep it through the kit and find out what frequency helps make the Drums more present.

But, push come to shove, in jazz the drums generally are not mixed as hot as they are in pop anyway…

By the way, if you haven’t already tried it, try enabling the dynamic arranger. This will allow you to make the Drummer play harder (not just louder!) as you PLAY harder. It is an amazing feature, well worth spending a bunch of time with to see how you can make your styles respond to your playing a lot better. It works incredibly well if you are playing in piano mode With both hands. Set the chord recognition to pianist 2. Utterly amazing!

As far as I know, no other arranger at this point has Roland’s advanced “three note chord with sustain pedal up, five notes before a new chord with the sustain pedal down“. It makes playing pianistically and still getting good chord recognition better than any other arranger I have ever played!