There are vast neurological links between language and music, and music also activates both sides of the brain whereas typical language-learning methods only activate one lobe. So if you remember something to a tune, you are more likely to recall the information than if you just read it or heard it spoken. Music is also a great way to learn the intonation of a language and train your facial muscles as you sing along. You can learn new vocabulary, practice pronunciation and see grammar at-work. French is particularly melodic and rhythmic, with the linking of words together and singing is a great way to practice these liaisons.