"With a prologue and 3 acts, a drama of Alfonso's final years and the rebellion of his son, Sancho. Parts of three CSM (in Castilian translation) are incorporated into Act II (10,??, and ??) and, in act III, 360 and a reprise of 10 (both times it is Alfonso who intones the refrain of CSM 10, the last time it is on his deathbead, his final words)."