It's also used for training singers. For instance, in grad school, I taught Singers' Diction in various languages. Being able to transcribe any given text into

It's also used for training singers. For instance, in grad school, I taught Singers' Diction in various languages. Being able to transcribe any given text into IPA, and then of course pronounce it accurately, is a core skill for classical singers. The usual languages covered are English, German, Italian, and French, those being the most important for classical music. Interestingly, the language that a lot of native English speakers have the most trouble with is...English! You'd be surprised.