Bob Gatzen on Tuning the Bass Drum Mar 18, 2008 Dave Kropf ⋅ Education, Tips/Hints/DIY, Videos ⋅ bass, bob gatzen, tuning ⋅ Bob Gatzen teaches how to tune up the kick. Tweet Like 0 Thanks! You've already liked this Dave Kropf → Dave Kropf « MD Announces Lineup for 2008 Festival » Jazz.com Interview with Bobby Sanabria