Better Days (Natalia Gutierrez y Angeloの曲)
This proved to be a major challenge as there were many factors at play. The message needed to be able to be understood, but not stand out in the song. After a lot of experimentation, they discovered that “the magic number was 20. You can fit approximately 20 Morse code words into a piece of music the length of a chorus, and it sounds okay,” according to Portela.