Devices and methods for controlling an electronic system are provided. An embodiment of a device comprises a spring having a first end with a first handle and a second end with a second handle. A first sensor detects movement of the first end and a second sensor detects movement of the second end. Each sensor provides a control signal to the electronic system such that the electronic system can act according to the varying control signals. A method comprises providing a spring-based musical instrument and providing a computer having a speaker. The spring is altered by the musician in order to generate control signals to the computer. Sound is generated by the speaker and varied by the computer according to the received control signals.