An Electroacoustic musical instrument is any acoustic musical instrument that makes use of electronic means to amplify, alter, or enhance the timbre produced by the acoustic instrument. This can include the use of signal processing, electromagnetic tape, low and high pass filters, reverb, and harmonizing. The modification of an instruments timbre can be done with purely analog electronics as well as digital computing. The acoustic instrument can be allowed to resonate on its own with the accompaniment of the modified sound or the output can be solely the modified sound, in various forms from amplification, tape recordings, to digital musical files. The impotent element in this form is that the sound generated originates as an acoustic sound generation that is then modified in some way by an electronic device.