mae·stro 
/ˈmaɪstroʊ/ noun
plural mae·stros also mae·stri /ˈmaɪstroʊ/ noun /ˈmaɪˌstri:/ [count] : a man who is an expert at writing, conducting, or teaching music — often used as part of a title ▪ The orchestra played under Maestro Bernstein. ▪ Which tempo do you prefer, Maestro?
