Piano Chords, Scales Companion

Songtive

In-app purchases

About this app

Find any piano chord or scale in seconds — even when you don't know its name. Piano Companion is the music theory app trusted by over 1,000,000 musicians worldwide, rated 4.75★ from 22,000+ reviews.

Forget what a chord is called? Press a few keys on the on-screen piano or your MIDI keyboard and the app identifies it instantly. Looking for a scale that fits a song you're writing? The interactive Circle of Fifths shows every compatible chord at a glance.

Not sure what Cmaj7♯11 means? Tap any chord symbol to see the notes behind it, the intervals, and the degree it plays in the key — so the shorthand on a lead sheet stops being guesswork.

What you can do with Piano Companion

- Look up 1500+ piano chords up to the 6th inversion — major, minor, diminished, augmented, sevenths, and beyond.
- Browse 10,000+ scales — major, minor, chromatic, pentatonic, blues, modes, and more.
- Build harmonies in the Chord Progression Builder using relative or common chords.
- Hear how a chord or scale sounds in loop or arpeggio.
- View notes on the staff in treble and bass clef.
- See fingerings for both hands in major and minor scales — and contribute your own.
- Connect an external MIDI keyboard to play and search in reverse mode.
- Send MIDI output to your favorite DAW.
- Switch between English, Italian, German, Japanese, Russian, and other key notations.
- Save your own libraries, favorite scales, and custom chord charts.
- Songbook: write lead-sheet songs with lyrics and chords, play them back with auto-scroll, and export to PDF.

Theory that finally makes sense

Piano Companion teaches music theory through hands-on practice. The app labels secondary dominants, leading tones, and common degrees — Tonic, Supertonic, Mediant, Subdominant, Dominant, Submediant, Leading tone (in major) and Subtonic (in natural minor) — so you can study how progressions are built. Listen to relative scales side by side, browse compatible chord-and-scale pairings, and try modes you've never used.

Songwriting and composition

Use the chord wheel and progression sequencer to compose songs from scratch. Add arpeggios, swap chords for relatives, and play the result on the built-in piano or through MIDI.

Questions or suggestions? Email [e-mail] or visit forums.songtive.com.

Download free and start naming the chords you already play.

Ratings and reviews

Career bassist that picked up a couple workstations during pandemic. I can figure out most chords. But, it's a nice to tool that can not only test your choices, but give you the correct chord and fingerings . Have used it consistently since I downloaded it. Of course there are options that can add additional cost. But there's plenty here for free. At the point I no longer need what's free. I can only imagine what the paid enhancements will bring to the table

I absolutely love it, I'm able to find all the chords I need even if I know a few notes only. While most use it for chord dictionary I actually wanted to use it for chord progressions, however I'm not too sure on how to use the chord progression part of the app. It's kinda confusing, with that being said I do think there should be videos on youtube or something like a tutorial going over the app in detail of all it can do. Especially on chord Progression. All in all it is a good app.

I really like it, but now it won't make any sounds... My progression is there, but when I hit play... Nothing. Can you guys help me. I'll give 5 stars and buy the Pro version if this can be resolved. I'm on Android Galaxy Note 8. EDIT: Okay, I LOVE this app, I bought your PRO version... And it freezes more than the free one. Please, fix this. I bought it... I could really, really love it... Contact me...

What’s new

Getting started is much faster. Setup is now a handful of taps: pick your level, confirm your note names, and try the reverse chord lookup straight away — then you are in the chord dictionary.

Daily reminders now do exactly what they promise: one chord a day, matched to your level.

Plus stability improvements and bug fixes.

Love our app? Please rate us - each vote is very important for us! Your feedback keeps us motivated to continue development.