Guitar Songwriting App with Chord Voicings & Fretboard Diagrams
Write songs with exact guitar chord voicings: open positions, barre chords, capo-adjusted shapes, and higher-position shapes. See fretboard diagrams for every chord in your progression. Switch to Piano mode anytime.
Guitar Voicings for Every Chord
Every chord in your progression comes with real guitar voicings: open positions, barre shapes, higher-position shapes, and capo-friendly fingerings. Browse multiple positions per chord and pick the one that fits your playing style and the sound you're after.
- Open, barre, and higher-position shapes for every chord
- Extended and altered chords too: 9ths, 11ths, 13ths, 7♯9, 9♯11, 7sus4
- Multiple voicing positions per chord: navigate with arrows
- Capo-adjusted shapes that reflect what you actually play
- Full fretboard diagrams with finger positions and muted strings
- Voicings update when you change chords or capo position
Piano Mode for Keyboard Songwriters
Not every song starts on guitar. Toggle to Piano mode and see a keyboard layout for every chord in your progression. The chord palette, song data, and suggestions stay exactly the same: only the voicing display changes. Switch back to guitar anytime.
- Toggle between guitar and piano with one click
- Keyboard layout shows highlighted keys for each chord
- Same chord palette and progression: nothing changes but the view
- Write on guitar, check voicings on piano, or vice versa
Capo Transposition
Set your capo position and every chord voicing updates automatically. The fretboard diagrams show the shapes you'd actually play relative to the capo, while the underlying harmony stays the same. Write in any key using familiar open-position shapes. To find the key your voice wants first, the free vocal range test gives the open shapes and capo fret for each key that fits.
- Adjust capo position from fret 1 to 12
- Voicings update instantly to capo-relative shapes
- Play complex keys using simple open-position fingerings
- Note input directly on the melody tab
Common Questions
Does Song Cage show guitar chord fingerings?
Yes. Song Cage displays full fretboard diagrams for every chord in your progression. Each diagram shows exact finger positions, open and muted strings, and the fret range. Multiple voicing positions are available per chord, and all diagrams update automatically when you change the capo position.
Can I switch between guitar and piano?
Yes. You can toggle between guitar and piano mode at any time. Both instruments share the same chord palette and song data: switching the instrument view never changes your progression. Guitar mode shows fretboard diagrams while piano mode shows keyboard layouts.
Does Song Cage support capo transposition?
Yes. Set your capo position and all chord voicings update automatically to reflect the new shapes you’d actually play. The underlying harmony stays the same while the fretboard diagrams show capo-relative fingerings, so you always see exactly what to play.
Everything Works Together
Chord Progressions
Context-aware chord suggestions, borrowed chords, secondary dominants, and voice leading optimization.
Lyric Writing
Rhymes, slant rhymes, and synonyms. Click any word and the tools appear instantly.
Music Theory
Learn borrowed chords, modulation, and voice leading naturally as you write songs.
Start Writing Songs on Guitar
Free for one song in your browser. No credit card required. Open Song Cage and see your chords on the fretboard.
Start writing for free →Or buy the licence: Song Cage for Mac and Windows, AU/VST3 plugin included.