Questions about and iframe

What I’m trying to do

Embed an transcript in an obsidian document, navigate between tabs using the keyboard, and control the web app using the keyboard.

Things I have tried

I tried using the iFrame instructions in and the resulting document was a tiny little square. It didn’t show the transcript, just the audio playback controls.

I then used the Custom Frames plugin

That works pretty well, but I can’t use the keyboard to navigate between tabs, and I can’t use the keyboard controls for the Obsidian Web app.

Has anyone found a usable way to embed an individual transcript in an obsidian document and use the keyboard for navigation between tabs, and to control the app?