Double bass players performing in genres where the bass is slapped, either by pulling the string until it snaps back onto the fingerboard or striking the strings, such as traditional blues, rockabilly, psychobilly jazz, folk, and bluegrass often blend the sounds picked up by a piezoelectric transducer with the sounds picked up by a small condenser microphone mounted on the bridge. The microphone picks up the resonance coming from the body and the sounds of the strings being plucked, bowed, or slapped. The two sound signals are blended using a simple mixer and then routed to the amplifier.