Slap (from the English "slap") is a technique of playing musical instruments with your fingers with a specific plucking of the string. In a broad sense, pizzicato is available for both strings and wind instruments and even the piano, but in modern music it is most often used in jazz and rock as a technique for playing the bass guitar, less often the electric guitar. The timbre of the instrument acquires a certain deafness, playfulness, the rhythmic component becomes more acute.
Instructions
Step 1
Slap is similar to pizzicato, but with more impact force and more overtones. The impact on the string is so strong that the string, by inertia, not only returns to its original position, but goes further, hits the body and emits a specific metallic sound. For the first time this technique was used by the Hungarian Bartok at the beginning of the last century, and by the 1920s it had migrated to jazz.
Step 2
Slap performance is possible only without a pick. Therefore, place your right hand with an edge on the strings, relax your fingers. You can grasp the strings with your left hand, but at the beginning of training this is not necessary, you can just hold the neck.
Step 3
With the upper phalanx of the thumb, pluck the string with force and immediately release the string. Repeat on this string and on the other.
Step 4
To perform slap on a piano (preferably a grand piano), hold the string in the body and press the key corresponding to the sound of the string. The instrument's tone will be muted.