Press start and play a string
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Reference tones (standard tuning)
100BPM
Time signature
/
Custom signatures click one accented beat per bar at the numerator count. 7/8, for example, clicks 7 evenly-spaced beats and accents the first.
Click any beat dot above to mute it. It still flashes so you can see it pass, just without the click. Handy for practicing internalizing a beat.
Range:
Score: 0 / 0
How Tab Sync works
- Mark Lines: click the button, then drag a box over one line of the music, left edge to right edge. It's split into "Bars per line" equal bars as a starting point. Repeat for each line, top to bottom. A multi-page PDF is shown as one continuous page, so just keep going straight through a page break.
- Fixing uneven bars: real engraved music rarely spaces every bar the same width. Busier bars take more room. A small handle appears between every two bars; drag it to match the actual barline you see in the image.
- Wrong bar count in a line: each bar in the list below has a + and a ✕. If a line has one extra bar, click + to split a bar into two. If it's one bar short, click ✕ to remove a bar. Its neighbor stretches to fill the gap, so nothing's left empty.
- Undo Last Line removes the bars from your most recent drag, in case it was off.
- Calibrate by Tapping: tap along with a click track to teach each bar its real beat length.
- Start Sync: play back at any tempo. A cursor sweeps through each bar in time, then jumps to the next.
Nothing is uploaded. Your file stays in the browser.
How to use the circle of fifths
- Layout: keys are arranged so each neighbor is a perfect fifth away and differs by exactly one sharp or flat. Going clockwise from C adds sharps (F♯, then C♯, then G♯...); going counter-clockwise adds flats (B♭, then E♭, then A♭...).
- Key signature: click a key on the outer ring to see exactly which sharps or flats it uses.
- Relative minor: the inner ring shows each major key's relative minor, same key signature and same notes, just a different "home" note (the 6th degree of the major scale).
- Finding related keys: a key's two neighbors on the wheel (one clockwise, one counter-clockwise) are its most closely related keys. They share almost all the same notes and chords, which makes them natural places to modulate to, or to borrow a chord from for a bit of colour.
- Building progressions: the 7 chords shown for a selected key are its diatonic chords, every chord you can build using only that key's notes. Progressions like I–IV–V or ii–V–I are built directly from this list.
Diatonic chords in this key
Closely related keys
How Song Builder works
- Type your lyrics: the box on the left is a plain text editor. Type normally, press Enter for a new line.
- Find a chord: pick a root and quality on the right. Its diagram shows live.
- Or build one: switch to "Build" and click notes on the fretboard. It tells you what chord that is.
- Add it: click into the text where it should go, then click "Insert at Cursor". The chord name appears right above that spot.
- Move it: drag a placed chord left or right to slide it to a different spot in the line.
- Reuse one: every chord already in the song appears under "Used in this song". Click one to pick it again instead of re-finding it.
- Learn it: click any chord in the text to see its diagram on the right.
- Remove a chord: click the ✕ on its label.
- Structure: click Intro, Verse, Chorus, Bridge, Solo, or Outro to drop in a labeled section with a blank line underneath, ready to fill in.
- Metronome: set a tempo and press play to keep time while you read through the song.
- Save: name your song and click Save. It's kept in your browser so you can reopen and keep building it later.
- Export: opens a printable page with the lyrics, chords above the right spot, and a diagram for every chord. Use your browser's "Save as PDF" print destination to download it.