Croatian is a tough language. Trust me, I have been (trying to) learn Croatian for almost a year now. Everyone will tell you just how hard the language is to master - most Croatian's will even agree. But it's not hard to learn a few basic Croatian phrase
The oldest known music preserved in Croatian language is considered to be Kantual "Blagoslovimo Gospodina" (Let us Bless Lord), written in Latin Script, dating from the end of 14th till the beginning of 16th centuries.