This 3 sentence summary provides the essential information from the document: The document is from a blog called "Amantes da Viola" or "Lovers of the Guitar" and is titled "Diário de Caipira" or "Country Diary", dated March 27, 2012. It discusses the song "Zé Mulato e Cassiano" played on a guitar tuned to the key of E major. It also provides the chord progression and fingerpicking pattern for playing the song.