Comment 2 for bug 473453

I went to "Wine Configuration", Audio tab. Unticked all sound drivers, leaving only EsounD Driver ticked.
I can confirm that sound playback is now correct - Thanks for the tip edalb!

This setting conflicts with the advice on the Spotify webpage http://www.spotify.com/en/help/faq/wine. I have emailed them about this in case they want to update their webpage.

I'm happy - I have a successful work-around.