Music Theory
That Stays Bright

Learn to play along, improvise, and truly understand
the music you love.

The problem

Most music theory apps are either boring textbooks or narrow trainers. You learn concepts in isolation but can't connect them to real music.Foolight teaches you to hear AND understand music theory - so you actually use what you learn.

HOW IT WORKS

Build Your Foundation

Master notes, intervals, scales, and chords with integrated ear training. Start recognizing theory concepts in songs you already know. Each lesson you complete lights up a star in your night sky.

Stars Fade Over Time

Just like real knowledge, your stars dim if you don't practice. This shows you what you actually remember vs. what's slipped away.

Quick Reviews Keep Them Bright

Daily practices restore fading stars. The app reminds you what needs review, so you spend time on what matters most.

WHY FOOLIGHT?

Practical Music Theory

Built for musicians, not academics – Learn concepts you'll use when listening or playing, listening, or writing music.Knowledge that sticks - Uses science-backed spaced repetition—you review right when you're about to forget. Review schedule adapts as concepts become second natureGamified learning - Watch your night sky fill with stars. Keep your streak, track your stats, earn achievement badgesEar training integrated - Every lesson includes listening exercises. Theory and ear training aren't separate—they work together like they should

ABOUT

Hi, I'm Carrie!

I've wanted to learn music theory for years. To hear a song and know what's happening, to jam along without fumbling, and to improvise and actually sound like I know what I'm doing.I tried different apps, but they were either boring, too narrow, or taught theory I couldn't actually use when I sat down to play.So I decided to build something myself.Foolight is named after my dad. Foo (福) means blessing, good fortune. He passed away in October 2025.My dad was brilliant, but due to circumstances, he never got the chance to achieve what he was capable of. It pained me, and that's why I care about education - I want to help people reach their potential.If you've been looking for practical music theory that you can actually apply - I'm building it.Launching February 2026. I'd love to have you join the waitlist.— Carrie

Our Blog

Follow the Journey

I'm documenting the entire process of building Foolight—from curriculum design to launch day and beyond.Plus: Practical music theory guides to help you understand what you're hearing and playing.What you'll find:

  • Music theory tips

  • Product updates

  • Building in public

  • Lessons learned

FAQ

Frequently Asked Questions

Q: Is this for beginners or advanced musicians?
A: Both! The lessons start from the ground up (no prior knowledge needed), but even experienced players will find value in solidifying fundamentals and training their ear.Q: What instruments does this work for?
A: All of them. We use staff notation and ear training - universal concepts that work whether you play guitar, piano, sing, or any other instrument.Q: How is this different from other music theory apps?
A: Most apps are either boring textbooks or narrow trainers. Foolight focuses on practical knowledge you actually use. Ear training is integrated into every lesson, and gamification keeps you engaged without feeling like homework.Q: Is this free to try?
A: Yes! The first 5 lessons are free forever. Premium ($6.99/month) unlocks advanced courses, with more coming over time.

Join Waitlist

Be First to Launch

Foolight launches in spring 2026. Join the waitlist to witness our journey and receive launch updates!

© 2025 Foolight. Built with love and spaced repetition.