YouTube embeds require HTTP — open via a local server instead of file://.
In Terminal:


  cd /Users/meghai/Documents/meghai/jazz && python3 -m http.server 8080

Then open


  http://localhost:8080

in your browser. (Audio files work fine from file:// too.)

The Shed

Loop · Slow Down · Transcribe

Space Play / Pause

→ +5s

← −5s

↑ Speed +0.05×

↓ Speed −0.05×

T Tap Tempo

M Add Marker

Shortcuts only work when the video isn't focused — click anywhere outside the player first.

♫

Paste a YouTube URL above

0:00 / 0:00

Loop A – B

A B

Drag timeline or type a time (m:ss) to set loop

Speed / BPM

1.00×

Playback speed

—

Current BPM

¼×

2×

Base BPM