This weeks groove is deceptive in its simplicity. The hi hat accent changes from the downbeat (1,2,3,4) in the first bar to the upbeat (+) in the second bar. The volume of all the other instrumends (bass drum and snare drum) remains the same. Start this exercise very slowly (about 40bpm). Use the shoulder of the stick (the fat bit just below the tip) to make the accent. Good Luck!