Verify Choral Sheet Music Videos

Review 253 choral works - would suit someone who loves classical choral music.

Title: Check 252 sheet-music videos stay in time with the audio (must read music)

I run a choir rehearsal website. Each movement has a scrolling score video with a moving cursor, played against a recording. I need every movement checked to see whether the cursor stays in time with what you hear.

You must be able to read a vocal line on a stave and follow it while listening. Choral singers, music students and music teachers are ideal.

The job
- 252 movements, listed in a Google Sheet (link given on award), each with a web link. Login details supplied. An example of the kind of work you will review is https://chordperfect.vercel.app/works/bach-st-johns-passion/soprano.
- For each movement, open the link, press play, and listen for about 15 seconds at three places: the start, the middle (drag the slider to halfway), and the last 30 seconds.
- In the sheet, for Start / Middle / End, type one of:
ok – cursor is on the note you hear (within about half a beat)
behind 1s – cursor reaches the note AFTER you hear it, by roughly this many seconds
ahead 2s – cursor reaches the note BEFORE you hear it
Use whole or half seconds: 0.5s, 1s, 2s, 3s...
- Notes column: anything odd – no video, no sound, video ends early, wrong piece, silence for a long time, etc.
- Desktop or laptop with headphones, Chrome or Edge. Not a phone.

Time: about 1–1.5 minutes per movement, 5–7 hours total. Spread it over several sittings – accuracy matters more than speed.

Quality check: some movements are known to be out of time and are in the list unmarked. Results will be checked against those before release of payment. Please do not guess or fill in rows you have not listened to.

Deliverable: the completed Google Sheet. Please reply with one sentence on your musical background. And indicate when you can complete the project (ideally within 4 days)