Chord Songbook: Cantabile

Chord charts for the stage. Tap a key button once and every chord over the lyrics moves to tonight's key, while the original key stays safe.

Made for worship-team players, band guitarists and keyboardists, and teachers who get chord charts in group chats and use them on stage. No sign-up, no ads, no permissions: buy once and you are done. Your songs move between phones as one backup file.

■ Good to know first
· The app does not supply songs (lyrics or chords). It is a tool for the charts you already have.
· No backing-track playback, song search or note recognition. It lets you view, transpose and turn pages.
· PDF and paper scores are not handled.

■ Paste it and chords land over the lyrics
Copy a "chords line + lyrics line" text from a chat or the web and paste it: each chord is placed over its word. Lyrics in wide (CJK) characters line up too. Import .cho, .pro and .txt files, many at once; older Korean-encoded .txt files are read without garbled text.

■ Transpose · capo
· Move the key by semitones and every chord in the song moves with it. Sharps and flats follow the key signature you moved to.
· Add a capo and the sound stays put while the app shows the shapes to play (capo 2 with a C shape sounds as D).
· Players often drop a semitone for just one night, so the original text is untouched and the view is saved per song. You can make a key the new original whenever you like.

■ Tap a chord for the fingering
· The chords in the song sit on top as small chord diagrams.
· Tap one for a big guitar fingering (with the note on every string) and a piano keyboard.
· Each diagram was checked by sounding every shape against the chord's notes. Unknown chords are shown as unknown.

■ On stage
· Group songs into a setlist: when one song ends you roll into the next instead of going back to the list.
· Register a Bluetooth page-turner pedal with one press. Each press scrolls one screen, and at the end of a song it moves to the next song.
· Auto-scroll remembers its speed per song.
· The stage view is dark by default, so it does not dazzle you or leak light toward the audience.
· The screen stays on while you play.
· Text grows to fit the longest line on screen. There is a chords-only view too.

■ One file to move
· Export songs, setlists and settings as a single zip. Every song is inside as a standard ChordPro (.cho) file, so other chord apps can open it.
· No account, no server: the file is in your hands.
· You can also send a single song as text.

■ No permissions at all
Not even internet. Your songs have no way to leave the device.

No ads. No in-app purchases. Buy once and it is yours.