FIG. 1 is a front perspective view of an adjustable guitar pedalboard showing my new design, with broken lines for the purpose of illustrating portions of the article that form no part of the design;
FIG. 2 is another front perspective view thereof;
FIG. 3 is a rear perspective view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a left view thereof;
FIG. 7 is a right view thereof;
FIG. 8 is a top view thereof;
FIG. 9 is a bottom view thereof;
FIG. 10 is a front perspective view thereof, showing the design in an alternate position; and,
FIG. 11 is a front perspective view thereof, showing the design in an alternate position.
The broken lines in all accompanying Figures are for the purpose of illustrating portions of the article but form no part of the claimed design.