Get the full Matrix
Unlock Mac’s Matrix.
One purchase — everything the Matrix does today, and everything it does next.
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- Every scale — all 32, including symmetrical, pentatonic, bebop and exotic. The free Matrix covers the four nuclear families
- Interchange — the chords you can borrow from scales sharing your tonic
- The 9th, 11th and 13th on every row, beside the triad and 7th
- All five positions — the free Matrix gives you position 1; this opens 2 to 5 across the fretboard, keyboard and staff
- E.S. spelling — spell the matrix the way the staff does, one letter per scale degree, double accidentals and all
- The full Comparative view, every row — the free Matrix caps it at 3
- Songs & Lessons — two shelves for saved progressions: one for what you are writing, one for the ii-V-Is, blues and turnarounds you teach from
- $99 once — no subscription. The Matrix as it stands, and every update to it, yours to keep
plus sales tax
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One-time purchase, non-refundable. See Terms & Privacy.
R&D
The Matrix is finished enough to teach from — that is what the $99 buys. It is also still being worked on: chord diagrams past the major scale, any stringed instrument in any tuning, a teacher’s edition with chord shapes you draw yourself, and progression packs — blues, rhythm changes, rock. All of it lands in the version you already own, and none of it has a date on it.
The whole list is public, dated, and has no dates on the features themselves — see the whole list →