Overview
Web piano studio with MIDI, smart progressions, harmony map, and lifetime access.
Pricing
Detailed plans have not been confirmed in our catalog. Check the official website for current limits and billing terms.
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Use Cases
- Piano students use Coffee Piano to explore chord progressions and avoid guessing which chord comes next.
- Composers and producers use Coffee Piano to sketch harmonic ideas quickly.
- Self-taught players use Coffee Piano to practice 7ths, extensions, and jazz color.
- Teachers use Coffee Piano as a visual lab for demonstrating harmony to students.
- Guitarists use Coffee Piano to see validated guitar chord diagrams while hearing the same harmony on piano.
- Users use Coffee Piano to reharmonize individual bars with reharm chips that add richer chord color.
- Users use Coffee Piano to loop a progression and improvise with highlighted scales.
- Users use Coffee Piano to record playing, export progression MIDI, copy chords, and save projects locally.
Features
Audio generation
Voice or music workflow
Media processing
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FAQ
Is this a subscription?
No. It is a one-time $49 purchase for lifetime access; Patreon members at $9/month can also enter while their membership is active.
Who is this for?
It is for anyone learning or creating with chords, including piano students, guitarists, songwriters, producers, and self-taught players. Reading sheet music fluently is not required.
What will I learn?
Users learn how progressions work in a key, when to use 7ths and extensions, voice leading, reharmonizing a simple loop, and how dominants and cadences create emotion.
What does the app actually do?
It generates chord progressions, plays them with optional groove, shows the harmony map with decode and Walk, Chord Lens for orbital reharmonization, Scale Orbit for circular scale maps, guitar diagrams, and helps users record and export in one browser studio.
How do I get the most out of it?
Pick a key and mood, generate a progression, press Listen with groove, use the harmony map on each chord, try reharmonizing one bar, loop it, and improvise with the highlighted scale.
Do I need a browser extension?
No. Open Harmony Lab in Chrome, Safari, or Edge on desktop. Log in after purchase.
Piano only, or MIDI too?
Both. Use the on-screen piano or plug in a MIDI keyboard with sustain pedal support.
I play guitar — is this useful?
Yes. Every chord bar can show a validated guitar diagram while the harmony is heard on piano.
Beginner or advanced?
Start with basic triads at level 1 and move to 7ths and extensions when ready. The harmony map helps beginners, while reharmonization and altered dominants satisfy advanced users.
How do I access after buying?
After Stripe checkout, an email with login and password is sent; log in at coffeepiano.com and open Harmony Lab. The same account works on any computer.