Leonard Bernstein (1918-1990) – composer (including Candide, three Symphonies and West Side Story), conductor (music director of the New York Philharmonic, 1958-69), pianist, and educator (not least through the six televised Harvard Lectures) – is quoted as saying: “Music can name the unnameable and communicate the unknowable.”

Here is a film about him:

https://www.youtube.com/watch?v=QQC3wgeQyVc