Contingencies.--Johannes Brahms.--Franz Liszt.--Pietro Raimondi.--Vincenzo Bellini.--The problem of Mozart's Requiem.--Antonio Caldara.--A note on Giacomo Meyerbeer.--Orazio Vecchi and the madrigal drama.--The Verdi revival.--Carlo Gesualdo, Prince of Venosa; musician and murderer.