Texte d'origine - Anglais - ... I came in and said, "Hey Marvin, what`s up?"...

... I came in and said, "Hey Marvin, what`s up?" With that soft, genteel voice of his he sad, "Otis , come here. Sit down for a minute, let me test your ear?" So I sat down on the bench right next to him and he started playing these very progressive chord changes. He whanted to see if I could find the root note of each chord that he laid down.