http://www.latimes.com/entertainment/arts/la-et-cm-la-opera-review-20141027-column.html" What a way to debut!! New client, John Holiday, countertenor, debuted in the Los Angelos Opera's production of Dido and Aeneas by Purcell. The Los Angelos Times wrote of John's singing, along with fellow countertenors G. Thomas Allen and…