Reading chord symbols — and how each is written in other traditions

How to read a chord symbol: its parts (root, quality, the seventh and added notes, alterations, the bass after the slash), then every chord on C as this guide writes it, as Brazilian songbooks write it, with 7M and the tensions in parentheses, and in the other spellings found on charts, with its name and notes. Slash chords are shown on the staff with their bass.