What makes a great drum jam? What makes a bad drum session? How to get your drum circle to sound hot. If all the drummers are just doing their own thing during a drum jam, then it will sound like that kindergarten kids class...a big noisy mess, more annoying than uplifting. To have a successful drum jam, all the drummers must learn and agree to play the beats that form the back beats for each drum song and also agree on who will be allowed to play the leads over and around all the coordinated back beats.