Art is a hungry master, often demanding no less than all. Chekhov’s Nina, at the end of “The Seagull,” found this to be a drudgery, but there are many of the un-famous out there who render homage to the quest. Few professions require the level of perseverance that a life in the arts demands. Yet those who do persist, many unsung, make rare things every day and enjoy the inestimable privilege of hearing Shakespeare and Mozart come out of their mouths. Being an artist is making the trip to Baudelaire’s island. Once you have heard that performance or two which cannot be forgotten, which showed you what was really in the piece, which made you feel that this was the performance you always knew but hadn’t heard – there is no going back.