Illustrating the presence of non-axisymmetric features in the disc of MWC 480, as observed in ¹²CO. Left column: velocity, peak intensity, and line width residuals deprojected on the disc reference frame. Right column: azimuthally averaged residuals extracted per quadrant to highlight azimuthal variations in the different observables. The colour of each radial profile indicates the quadrant of the disc where it was computed according to the colouring code in the top right corner. Quadrants to the right of the disc vertical axis correspond to the redshifted side of the disc.