An electric double-bass is broken down into a trunk, a detachable
framework assembled with the trunk, coupling units provided between the
trunk and the detachable framework, accessory parts, strings stretched
over the trunk and an electric sound generating system for generating
electric tones like acoustic tones of a double-bass, and any resonator is
formed in the electric double-bass, wherein a string player disassembles
the detachable framework from the trunk for storing the electric
double-bass in a case, thereby enhancing the portability of the electric
double-bass.