He has participated in several master classes with Marin Alsop, Rossen Milanov, John Farrer, Daniel Lewis (conductor), Donald Thulean, Philip Greenberg and Adrian Gnam.
David Grandis has worked with several conductors such as Klaus Weise, Michel Plasson, Misha Kats, Donald Schleicher, Vincent Monteil, Hajime Teri Murai and Andrea Licata.
His doctoral thesis, A la recherche du chant perdu, analyzes the French style of opera singing and celebrates the era of the RTLN and its lyric company.
Further lyric conducting engagements include several performances of Puccini’s La Bohème with the Long Island Opera Company in 2017.
A specialist of the French repertoire, David Grandis has established long relationships with prominent composers and their descendants: he recently completed research on the symphonic works of Max d'Ollone, contributed to restore a lost score from Jean Françaix.