I've attempted to show one of my tracks on twitter for a test, but it doesn't play from the site. Am I doing something wrong or has this feature just not been implemented yet?
Are you hitting the 'Share' button on the audio page? If so it's just a link, not the player.
I know there should be an embed for audio (since you can allow embedding when you submit, and I'm pretty sure I've seen some embedded audio bere) but at the time of writing I can't seem to find it... not sure how you would go about doing that right now.
I don't think it works on Twitter. There is the option to allow embedding, but as far as I know you can't get an embed code onto a tweet.
I'm not sure what the overall limitation of the embed feature is for Audio, but @liljim may know.
Flag stolen content, don't be a dingus.
