Abstract: A drywall tape with an attached bead allows application of mud to adjacent drywall panels not oriented right angles. The bead is carried in a lengthwise orientation by the middle of the drywall tape on the side facing away from the drywall. The bead provides left and right rails that are typically 1/16 or 2/16 of an inch in height. The drywall tape is positioned in the corner between first and second drywall panels. The blade of the application tool is supported at one corner by a lip carried by one of the rails, and at the other corner by the surface of the first drywall panel. A guide tool is inserted into a groove between the rails of the bead at the upper end of the drywall tape, and is moved downwardly in tandem with an application tool. The application tool smooths mud about one side of the drywall tape carried on the first drywall panel. The guide tool carried by the groove prevents the application tool, or any mud pushed by the application tool, from contacting the second drywall panel.