A master class is a lesson where someone who is an expert at something such as dancing or music gives advice to a group of good students. Master classes usually take place in public or are broadcast on television.
master class in British English
(ˈmɑːstə klɑːs)
noun
another name for masterclass
master class in American English
a class taught by an accomplished musician who individually instructs advanced students in performance and technique, often before an audience