Following on from Triad chord library (Part 1) here is part 2, covering strings 2 to 4. Other posts in this series can be found here. A quick reminder about triad construction. A triad contains 3 notes – obviously – which are the root, 3rd and 5th. Those intervals vary according to chord type like this: Major R-3-5 Minor R-b3-5 Diminished R-b3-b5 Augmented R-3-#5