Among the main characteristics and features that we can observe in Baroque art we can mention the following. It seeks to represent inner feelings, passions, ways of thinking and different emotions. Its themes include religious topics that had been abandoned by Renaissance.
Yw and I sure hope this helps you
It's pronounced "ensemble" by the way. And, one way that a pianist would have a role would be by being in the background as an example and playing his part. He's going to play what he needs to play. The question does seem a little to vague, but truly, I would say simply, that the person who is playing it, just plays his part as they all make music sound good.
Most likely melancholy, as that was the pint of many 'Blues' songs