Live concert to sheet

A concert is not a chord chart until somebody writes it down. Jambox takes the video you filmed, reads the performance — applause and all — and lays the chords and the words out as a page you can take to the next gig.

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How it works

Drop in the video

A phone recording of a show is enough; the picture is never decoded, only its audio track is read.

The performance is read

Chords, key, tempo and words come from that night rather than from the studio version — so an arrangement that changed on tour comes out as it was played.

A key change is marked

When the last chorus steps up, the chord track raises a flag on the bar it happens, and the chart keeps reading correctly after it.

What you get

  • The chords and words of that performance
  • The key and tempo it was actually played at
  • A chart you can print for the next show

Where it stops

The import ceiling is the machine’s memory, not the ticket: five to eleven minutes depending on RAM, so a single song from a show is fine and a three-hour concert is not. Applause can blur a chord at a section break, and a live take that drifts in tempo is read as it drifts.

Questions

Is this different from importing a studio track?

Only in what it has to read: a live take brings applause, an arrangement that changed, and often a key change at the end — all of which the analysis follows rather than smooths away.

Can it take a whole concert?

Not in one import. The duration ceiling is five to eleven minutes by machine, so it is one song at a time.

What if the crowd drowns out a chord?

Double-click the chord and set it. The correction reaches the chart and the PDF.

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