Ruby and Sapphire make up.
Composed by Aivi Tran and Steven “Surasshu” Velema. “Stronger Than You” was composed by Rebecca Sugar. (If you listen carefully, you can hear the melody to it.) Steven Universe was created by Rebecca Sugar. Aivi & Surasshu’s Soundcloud: https://soundcloud.com/aivisura/steven-universe-reconciliation
From Aivi Tran:
” ‘Reconciliation’ from Keystone Motel. We arranged and performed this version of “Stronger Than You” with some inspiration from one of Jeff Liu’s improvisations.”