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Choose your
instrument.

Every tier unlocks a deeper relationship with harmony. Upgrade or cancel anytime — no contracts, no friction.

MonthlyAnnual

Free

$0/forever

Start learning with the foundations. No credit card required.

+5 chapters (Foundations)
+Basic chord identification tools
+Community forum access
+Web-based notation viewer
+Progress tracking (limited)

Most Popular

Pro

$19/month

Unlock the full curriculum and every Muse in the pantheon.

+All 76 chapters across 3 volumes
+All 9 Muses (tools & trainers)
+Marketplace access (buy & sell)
+PDF & MIDI export
+Priority email support
+Chapter completion certificates

Studio

$49/month

For professionals and teams building on THE MUSES platform.

+Everything in Pro
+Harmonia VST plugin license
+Full API access & webhooks
+White-label embeddable widgets
+Team seats (up to 5 members)
+Dedicated account manager
+Early access to new Muses

FAQ

Common questions

Still deciding? Start free and upgrade when you are ready.