Just looked up what ‘convertGraphemes’ does and it looks like a very heavy task (looks like creating stuff with Text-To-Speech). And yes, everything is upper case. The problem is the language map only contains names! And having ~100 names like ‘KONTRUST’, ‘SKRILLEX’ or ‘DEICHKIND’ which all aren’t english words.
How much work is it to create such a phonetic dictionary? Would it help to create such a dictionary for artist names?