«Char-Char»

Artists express their love with their talents sometimes. One writes a poem, another is drawing a picture...
Singers make songs about their love interest. They use words and music to declare their feelings.

One melody can be stuck in your head for weeks or months. Usually it's a song with some repetitive rhythm and lyrics, the motive uses cycled melody...
Names can be melodies too and a full name can be a song.