We claim the ornamental design for an electronic piano, as shown and described.
FIG. 1 is a reference perspective view of the electronic piano showing a state in which the music desk is erected and the piano lid is opened according to the claimed design.
FIG. 2 is a reference perspective view of the electronic piano showing a state in which the music desk is brought down and the piano lid is closed according to the claimed design.
FIG. 3 is a front view of the electronic piano according to the claimed design.
FIG. 4 is a rear view of the electronic piano according to the claimed design.
FIG. 5 is a left-side view of the electronic piano according to the claimed design.
FIG. 6 is a right-side view of the electronic piano according to the claimed design.
FIG. 7 is a plan view of the electronic piano according to the claimed design; and,
FIG. 8 is a bottom view of the electronic piano according to the claimed design.
The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.