The ornamental design for an electronicmusicalinstrument, as shown and described.
FIG. 1 is a bottom, front, left perspective view of an electronic musical instrument showing our new design;
FIG. 2 is a bottom, rear, right perspective view thereof;
FIG. 3 is a top, rear, left perspective view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a right side view thereof;
FIG. 8 is a top view thereof; and,
FIG. 9 is a bottom view thereof.
The broken line portions of the electronic musical instrument in FIGS. 1-3 and 5-9 represent unclaimed portions of the claimed design and form no part thereof.