Sorter for Deathpact songs. Pick your sources, and hit the Start button.
Certain options have details that you can hover to read.
Keyboard controls during sorting: H/LeftArrow (pick left) J/DownArrow (undo) K/UpArrow (tie) L/RightArrow (pick right) S (save progress).
Before sorting: S/Enter (start sorting) L (load progress).
1/2/3 always correspond to the first/second/third buttons.