Preview sounds on Subscription page and add ability to locally serve up sound preview

When subscribing (or updating) on your subscribe page, users can choose a sound from the dropdown but cannot preview the chosen sound so they have no idea what it will sound like until they actually get a message.

Please add a preview button for selected sound - similar to what you do in the API sound page at https://pushover.net/api#sounds

Similarly, if my app downloads your sound list using

https://api.pushover.net/1/sounds.json?token=(your app token)

and displays choices on my page, again there is no way to preview the sounds so having the ability to download the sounds or have a link to each one in each row would be helpful too.