Uploaded December 2025 | Updated September 2026, 2 weeks ago

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Curious about the new Music Theory by Justin Guitar app? Join us for the live launch! If you’re tired of theory that feels boring or disconnected from real playing, this app finally makes it click. Learn how it helps you unlock the fretboard, understand how music works, and immediately level up your guitar playing.

🎶 Get the Theory app at justinguitar.com/store/practical-music-theory?utm_source=youtube&utm_medium=livestream&utm_campaign=talivelaunch