Melody in, left-hand chords out
Type the tune in 123 or Do-Re-Mi, or play it in on the keys with the click. One chord card per bar; blue keys show where your left hand goes. Tap a chord after “or” on a card to hear another choice.
Play the tune. Get the left hand.
Type or play your melody and get one left-hand chord card per bar. Have a chord chart instead? Paste it or snap a photo.
Native iPhone / iPad app. One card is one chord; a path is your song, card by card. Blue keys show where your hand goes. The app sound is a guide; connect MIDI for your real piano. Not a browser piano or a song library.
For anyone who can play a melody but not the left hand, for accompanists with a chart they can barely read, and for kids exploring.
Free on the App Store · 7-day full trial · then buy once · Family Sharing · Best on iPad · iPhone works too · iOS 16+
We are still adding more. Updates after you buy do not cost extra.
1.1
The left hand, from your melody.
Type the tune in 123 or Do-Re-Mi, or play it in on the keys with the click. One chord card per bar; blue keys show where your left hand goes. Tap a chord after “or” on a card to hear another choice.
Tap Photo and take a picture of a chart with chord letters above the words. The app reads the chords, the key in the title and section names like Verse, and lays out the cards.

Happy Birthday and Amazing Grace start before beat 1: pick the beat the first note is on, and the pickup plays in the count-in. Played a waltz in 4? The app notices and offers Switch to 3 beats.
No sheet music? Five old public-domain tunes are built in. Tap Melody on an empty path, then a song: the left hand appears, ready to play and save.

Show 123, Do-Re-Mi or ABC big, and another one small underneath. Any pair works, and the app remembers it.

Tap ⠿ to pick up a card, then tap where it goes. Deleted a card or pasted over your song? Tap Undo at the bottom and it all comes back.

Paths → ↗ sends the whole song to another iPhone or iPad, ready to play. All cards → Print / share all keyboards makes one sheet, two cards a row.
Tick Metronome and hear the beat while you record; the clicks stay out of the recording, and replay starts right at your first note.
Not a piano course. Not a song library.
A tool that turns your melody or chord chart into something you can play.
See how it works in 30 seconds.
Melody → cards → Play → Transpose
Need a new key? Transpose the whole Path in seconds.
Do not read letter charts yet? See exactly which keys to play. Kids can explore too.
Bring your chord chart. Build, play, change key, and experiment.
No song search, no licensed catalogue. Play or type your melody, try a public-domain demo song, or paste your chord chart.
Switch 123, Do-Re-Mi, or both — on cards, keys, and circle. Transpose and labels follow.
A path is a sequence of chord cards from start to finish. Stack the chords you like, or let your melody make them. Play hears the path; Rec captures your take.
Most charts are letter chords (C G Am F) — hard to play if you think in 123. Paste into Play → Chords → Use this. Labels switch to 123 / Do-Re-Mi; then transpose, blue keys, MIDI, save. Not a song library — your chart, your path.
Sound is near the end — tap 「Turn sound on」 under the video (silence at the start is normal).
Blue = this chord’s left-hand base. Gold edge = safe notes for your right hand. While the cards play above, keep noodling on the keyboard — melody, fills, or a little composition. Tap Rec and capture the whole take: backing path + what you played.
Under the keys: tempo, beats per chord, sound, and drum style. Tap to preview — gold Play uses your pick.
Tap a neighbor to transpose. Recommended chords below — tap to hear. 123 / Do-Re-Mi stay.
Pick chords you like — by feel or genre. Tap to hear; + adds to your path.
Rec keeps the notes you play (on-screen keys, a MIDI piano, path cards) and replays them with the app piano; tick Metronome for a steady beat. Save the whole song on Paths and send it to another iPhone or iPad with ↗. Need paper? All cards → Print / share all keyboards.Rec records your jam while the path plays — keyboard and cards together. Or save the path alone. Share — paths become a beautiful chord-keyboard picture.
Hear → pick, or Feeling → pick — light ear practice. Not ranked homework.
Hold a chord on the on-screen keys or a connected MIDI piano — the app names it in 123 / Do-Re-Mi. No piano required to try. One tap adds it to your path.
This clip has no sound — watch the chord name on screen.
One loop: build, transpose, play, save. No extra app in between.
| What you want to do | In the app |
|---|---|
| Play or type a melody, get the left hand | Yes, new in 1.1: Melody, type it, Play it in, or a demo song |
| A song that starts before beat 1, or is in 3 | Yes, new in 1.1: pick the first beat; 3 beats suggested for you |
| See the same path as 123 / Do-Re-Mi / ABC | Yes — show one, or two at once |
| Build a path, save it, load it later | Yes — plus export / import backup |
| Sync paths and jams across phones automatically | Not yet — export / import backup (Files / iCloud Drive) |
| Change key when the singer does | Yes — Key dial and circle of fifths |
| Know where to put your hands | Yes — blue keys + gold usable notes |
| Play a real piano / MIDI | Yes |
| Name the chord you just played | Yes — add it to your path |
| Paste 123 / ABC from Messages — whole path in one go | Yes — Play tab → Paste progression (C/G, 1/5, Cadd9, Gsus…) |
| 7ths, sus, dim, church colours | Yes — full chord palette |
| Inversions / hand shapes, hear the path | Yes |
| Tempo, beats per chord, drums, tone | Yes |
| Record what you played, share a card picture | Yes |
| Mark verse / chorus on the path | Yes |
| See the scale — gold edges, hear up / down | Yes — Scale on Play |
| Same path, different Play variations | Yes — try layouts & feels on a loop |
After the trial, buy once. Price on the App Store. No subscription.
Free download · 7-day full trial · then buy once. Price on the App Store. Family Sharing. A Path tool for chords, not a course, not a song library, not a browser piano.
We are still adding more.