Abstract: A device for tuning a percussion instrument or training a voice has a processor which is adapted to receive an electronic signal corresponding to an acoustic impulse produced by the percussion instrument or voice. The processor is further adapted to analyse the signal to generate one or more characteristics of the signal. The device also has a display connected to the processor which displays the generated characteristics. The one or more characteristics include any one or any combination of a time-domain characteristic of the signal, a plurality of fundamental and/or harmonic frequencies of the signal, and a frequency spectrum of the signal.