If you are a young and talented classical singer with fluency in English, John McMurray is the man you want to know.

“I’m not a singing teacher,” McMurray said.

But with more than 30 years of opera experience, he is the man from whom young vocalists take their cues.

McMurray, who is head of casting for the English National Opera, will instruct aspiring vocalists from 10 a.m. to 12 p.m. today, and from 1 to 4 p.m. Saturday in McKnight Hall.