Mastering Theory

NEW for 2025:

You asked, we listened — Mastering Theory now has an Installment Plan!
Choose Full Pay ($297) or 12 monthly payments of $26 at checkout.

New to this page?

If you landed here before reading about the class, no worries—click here to read the full course description, benefits, and testimonials.

Already Enrolled?

Welcome back! Be sure to keep an eye on your inbox — we’ll send you weekly reminders to help you stay on track.

You can follow the course at your own pace, but we recommend working through the lessons alongside the weekly emails. Everything is fully unlocked, so you can also treat this as a reference library to use anytime — especially alongside your copy of The Complete Guide to Theory and Mapping for the Hammered Dulcimer by Ken Kolodner with Mary Lynn Michal.

Bonus: Sharpen Your Skills Integration

We’ve added handy cross-links between Mastering Theory and our Sharpen Your Skills course.
That means you can go from learning a concept straight into applying it — or jump from a technique back to the theory behind it. Either way, the two courses now talk to each other (in a nerdy, musical kind of way).