Chord extensions, voice leading, functional harmony, jazz harmony, Indian classical harmony — Jason covers all of it across hundreds of lessons.
Ask Aria about HarmonyFrom Jason's lessons
Q
Jason explains it as a tension-resolution engine. The 2 sets up instability, the 5 cranks it tighter with the tritone between the 3rd and 7th, and the 1 releases everything. Every note in the 5 chord has somewhere specific it wants to go, and the 1 chord gives it exactly that destination.
Q
Start with the major 7th. It's the closest extension to the triad and the most consonant. Then explore the 9th. You don't need to add everything at once — one colour note on the right chord at the right moment is worth more than a full extension.
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