Augmented sixths

Three chords sharing one striking interval: the augmented 6th between the flattened submediant in the bass and the sharpened subdominant above. The interval first, then each of the Italian, French and German sixths in its own lesson, then how they are approached and resolved.

Start with The augmented 6th. In 12 minutes you will be able to spell the augmented 6th above the flattened submediant.

Brainlag's own Grade 7 level course, not an exam board's syllabus. Every example and question is original. Results are Brainlag estimates.