@emilybro16 Hey Emily, thanks for your comment! Fuzzy Bird is how I learned to slap! Essentially, you are grabbing the reed with your tongue, pulling it away from the mouthpiece using a combination of suction and grip/friction with the tip, and then letting it slap back. A normal "attack" is actually a release as well, but with a very minimal engagement of the tongue on the reed. For the slap, engage strong with the tongue and let go suddenly. To go fast, make it similar to your normal attack!
