A music practice supporting appliance has an input unit that inputs a
musical sound of a musical instrument and/or vocal music, converts the
musical sound into an electric signal, and outputs the electric signal as
an input signal. An amplifying unit amplifies the input signal outputted
from the input unit. A processing unit processes the amplified input
signal to obtain input signal data. A first memory unit stores the input
signal data. A second memory unit stores input signal data stored in the
first memory unit when the input signal data stored in the first memory
unit exceeds a preselected storage capacity of the first memory unit. A
control unit controls the first memory unit and the second memory unit so
that while the first memory unit is receiving for storage thereinto new
input signal data which causes the first memory unit to exceed the
preselected storage capacity, portions of input signal data previously
stored in the first memory unit are deleted from the first memory unit
and are stored in the second memory unit, and the new input signal data
is stored in the first memory unit. A display unit displays the input
signal data stored in the first and second memory units.