After Touch After Touch is the effect of holding down a key after it has been played. After Touch is sometimes referred to as pressure. The amount of After Touch affects the tone of the note played. After Touch events display the After Touch amount as a value. After Touch values are listed under the Pitch/Velocities columns and range from 0-127. See Also: Note events Poly After Touch events Controllers events Programs events Pitch Bend events System Exclusive events Bank Select