Maybe it's also a difference whether you just play the piano or accordeon like Mark or an arranger. Most of the answers were related to arranger playing, and using a PA system talking staff probably doesn't strike as much compared to pure piano, which is not as loud. Maybe it's also a different style of music if you play pure piano, so you can't expect the staff to "dance" with the residents like DNJ says. Some good piano music is not for dancing.