Slap (w/o tone)

This technique is known as dry or open slap. The resulting sound is pitchless and percussive. It gives this publishing house its name: eSLAPP.

Sound production varies depending on the embouchure and/or reed type, but the result should always be the same. The fingering of the referenced note must still be kept, because even though the pitch isn't exact, the fingering affects the final result.