Lenore Rosenberg, associate artistic administrator of the Metropolitan Opera, and one of the opera world’s foremost authorities on casting, will offer her professional insights and thoughts on career strategy at a masterclass on Florida Grand Opera’s SongFest Masters Series. Participating will be four members of Florida Grand Opera’s Young Artist Program: soprano Elena Galván, mezzo-soprano Melissa Fajardo, tenor Benjamin Werley, and bass-baritone Calvin Griffin. The masterclass is open to attendees age seven and older. Tickets range from to $10 to $35.