I agree. Love the site though, these are brilliant. Thanks!

Would it be possible to add a sound icon to the front page thumbnail of the ones with audio? Then people who are e.g. at work or listening to music can skip them if they prefer - and people who actively want something with music can seek them out too.

Or only rearrange in a given interval (30 seconds), and provide a visual clue the rearrangement is happening, while disabling interaction.