Residencies last anywhere from six weeks to two years! And while artists are responsible for funding, grants are offered, and acceptance can be put on hold to obtain funding.
The bass tone is played by hitting the center of the drum with your open hand. You want to bounce your whole hand against the skin to get that deep, low pitch. Also, by bouncing your hand off the head of the drum, the tones are left to resonate. Start by practicing this bass tone a few times — this is your core.