An 8-page two-staff solo piano package for “Equivalence Relation,” performed by Ronghao Li and aMEI and arranged by LouisLiao. It includes two 4-page versions: an original-key version that moves from A major to G-flat major, and a C-major version without a key change. Designed to avoid overly difficult techniques, both versions include lyrics and chord symbols; print the four pages for the version you need.