The ornamental design for a livechordsmidimachine, as shown and described.
FIG. 1 is a right front perspective view of a live chords midi machine showing my new design, the broken line showing of the markings and lettering for illustrative purposes only forming no part of the claimed design;
FIG. 2 is a front view thereof;
FIG. 3 is a back side view thereof, the broken line showing of various elements for illustrative purposes only forming no part of the claimed design;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof, with the broken lines showing the markings and lettering for illustrative purposes only forming no part of the claimed design; and,
FIG. 7 is a perspective view thereof, shown in use condition with the broken lines showing a user for illustrative purposes only forming no part of the claimed design.