Musical instrument transducer

In combination, a stringed instrument comprising, an instrument body, a bridge supported from the body, means defining a slotted opening defined at least in part by the bridge and having opposed facing upper and lower opening-defining surfaces, a pickup device disposed in the slotted opening and having an integral base plate and piezoelectric sensing element, and a spring means integrally arranged with the pickup device, the spring means adapted to engage the lower surface of the slotted opening for biasing the base plate of the pickup device into intimate contact with the upper surface of the slotted opening, said piezoelectric sensing element comprising a piezoelectric crystal having one and another side and wherein said base plate comprises an electrically conductive base plate, said spring means comprising a spring base and a resilient spring leaf integral therewith, electrical lead means including a pair of conductors, one of which is conductively connected to said base plate and the other of which is conductively connected to said piezoelectric crystal, a conductive adhesive for fixedly securing said one side of the piezoelectric crystal to the base plate or providing electrical conductivity therebetween, adhesive means for securing the spring base to said another side of the piezoelectric crystal, said instrument slotted opening surfaces having the base plate, crystal and spring means disposed therebetween with the base plate in facing contact with one of said surfaces while the resilient spring leaf is in facing contact with the other of said surfaces.