The present invention relates to a charge-pumping circuit for low-supply voltage. For these neat powder, a solution of a chosen energetic material is prepared in an aprotic solvent and later combined with liquid hexane that is miscible with such solvent. Further, after assembly of the interchangeable faceplate with the guitar body, the unique configuration of the components and electronic wiring on the faceplate, in combination with the guitar body configuration, produce superior and enhanced sounds, tones and resonance when played by a guitar player.