The ornamental design for an electronicdevice for musicalinstrument, as shown and described.
FIG. 1 Is a perspective view of the electronic device for musical instrument illustrating my new ornamental design;
FIG. 2 Is a top view perspective showing my new design;
FIG. 3 Is a left side view thereof;
FIG. 4 Is a right side view thereof;
FIG. 5 Is a front view thereof; and,
FIG. 6 Is a rear view thereof.
The broken lines in FIGS. 1-6 show portions of the invention which form no part of the claimed design. The bottom portion of the present invention is depicted in broken lines and thus unclaimed. The shade lines in FIGS. 1-6 show contour and not surface ornamentation.