Lyric fit measuring tape
Lyric Syllable Counter
Cut a lyric into singable syllables, correct the estimate, then lay each sound across one bar to test its breathing room.
Automatic syllables are a practical estimate. Click any tile to make the singer’s pronunciation authoritative.
Word cuts
Place the singer inside the bar
Scan a lyric to inspect its fit.
How to play
Mouse or touch: edit the lyric and choose Measure this line. Tap a syllable tile, move its cut marker, split or fuse it, then tap a numbered beat slot to place it. Stress dots sound higher; a slash marks a breath after that syllable.
Keyboard: Ctrl/⌘ + Enter measures the editor. Outside a text field, ←/→ walks through tiles, S changes stress, B changes breath, 1–9 assigns a slot, and P runs or holds the count-in scan. Focused buttons also use Enter or Space.
Convention: the capacity buttons divide one 4/4 bar into quarter-note pulses, eighths, eighth-note triplets, or sixteenths. The detector treats common silent endings and contractions as sung speech, but pronunciation varies—manual cuts always win.
- Start with eight slots and flow the line; if important words miss strong beats, move their tiles before changing the lyric.
- Use a breath slash near the end of a thought, then compare the same line at two capacities to hear whether it feels conversational or crowded.
This clever widget assesses how well a line of lyrics fits within a musical bar. Controls is accessible via the mouse, but it’s also possible to edit and navigate more quickly using your computer keyboard.
The tool will break up your text into syllables. It allows you to play around with how they are pronounced before mapping them across a grid to see where any rhythmic clashes occur.
How to Use the Lyric Rhythm Tool
To begin, enter (or paste) your lyric line in the text box at the top and click the “Measure this line” button. It will break down the text into separate tiles for each syllable. Using standard rules of English pronunciation, it guesses how many syllables is present.
If its guess is incorrect, you can adjust it so that it aligns with the way an actual singer might sing this line. Word cuts show where the syllables are broken up and laid out. You can click on any of these syllable tiles which will then make that one available to edit.
Below is surgery panel that details what’s going on with the selected sound. With the Cut marker slider, you can move the marker inside the word. Then, by clicking Split at marker, this breaks the syllable into two parts at that location.
To combine chosen syllables back into one, use Fuse with left or Fuse with right. These tools help you make sure the visual grid matches how naturaly your voice phrases things.
You can also indicate certain syllables as places of breathing or emphasis. To do this, click on Place breath after to create a breath mark. This will place a visual slash and a very short pause after that syllable. Click the Punch syllable to highlight it with a stress mark. When you listen back, that syllable is played at an increased pitch.
Both these marks are helpful in seeing exactly where vocalist should take a breath and where the peak of vocal energy occurs.
The Beat-slot assignment grid displays one bar of music with slots for beats. By default, it has eight slots per bar (eighth-notes). To assign a syllable to a particular beat, simply click on its corresponding numbered slot in the grid.
Or alternatively, use the automatic even distribution function by clicking the Flow line into slots button. This will spread your syllables evenly over the bar to show you immediately how densely the words fits into the measure.
The One-bar capacity section has buttons that allow you to adjust the subdivision on the bar. Options are 4 quarter pulses, 8 eighth notes, 12 triplets and 16 sixteenth notes. This means the grid will have greater or lesser detail according to the chosen subdivision. Lower resolution will show the macro structure of the phrase and higher resolution is where we can add quicker, more detailed rhythms that are lyrical.
Playback is controlled by the Phrase clock. To alter tempo (beats per minute), drag the Tempo slider. Use the Slot feel dropdown to change the feel. Choose Late Pair for a swinging feel with a very small delay on the off-beats. This can make the lyrics sound more conversational and relaxed if you are playing quickly with many words in each phrase. Use the Click volume slider to adjust how loud the voice sounds and the metronome.
At the bottom of the screen you get the diagnostic panel which gives you feedback about how well it’s fitting. It shows the total syllable count relative to the bar capacity via a progress bar that indicates if the line is over the bar, packed, balanced, or open, and it also counts crowded slots with more than one syllable per beat as well as highlights stressed syllables landing on strong beats. This could of help you find words that are out of time or may be being rushed.
Scan the bar and press count to hear the lyrics as they move across the grid. It will count in four times and play one per slot in turn. Breath marks are heard as pauses. Stressed syllables play back at a higher pitch. That way you can double-check that what looks good visually sounds good when sung.
The arrows are controlled by the computer keyboard: Use right arrow to select the next syllable tile; use left arrow for the previous syllable. The B key toggles a breath mark on/off at the current position; S toggles stress on/off on the currently selected syllable.
To place the selected syllable into a beat slot (beats 1-9), press that number key. Start/stop the bar scan by pressing P. Measure the line without using the mouse with Control or Command + Enter.
To undo your last cut, click the Undo last cut button to return to the previous version. Don’t worry about messing up, your most recent changes are saved in the widget, letting you freely merge and split until you find what works best.
Want a better look at the grid? Hit Fullscreen to stretch the widget across your whole screen. Need a quick refresher on how it all works? Click How to play.
Enter some text and measure it out, you will notice the default split. Use the surgery tools to fix parts that do not look good, then move them back into the slots. Change the swing and tempo and hear how this affects the feel. Then use the audio scan to hear the phrasing. Repeat as needed till all syllables falls easily within the bar and stress hits the downbeats.