how can I find previous music purchases Google play.?

[Bizkit]

I bought a galaxy tab 3 and used it for a few days but ended up taking it back, I only purchased one song from google play.
I now have a tab 2 and have managed to find and reinstall all my apps fine onto it, however I cant bloody find purchased music, im new to andriod and find it quite difficult to navigate, any ideas.?
I also have a voucher I redeemed on there, but how do I find this, like how much money I have left etc, there doesnt seem to be an obvious account page or a anything

bump.?

Looking at my nexus 7, when I go into the Google play app there is a symbol on the very top task bar of a arrow pointing down onto a line (looks more like a download symbol to me). When I click on this it shows me all the apps I have ever downloaded or purchased. It is the same on my android phone, but I have to call up an additional tool bar on that due to smaller screen. you may be asked to log in via your Google account.
I agree though, it's not obvious and I always have to have a little search around to remember where the "my apps" tab is.
Hope that helps!

Oh, sorry , not sure I answered your question, I assumed music would show up in the my apps tab as well as apps etc. I don't think I've ever bought any music.
Anything I've paid for the receipt usually gets sent to your Google email a/c, worth a check? If no help it might be worth trying one of the android forums for advice.

thanks for your help , I still havent found the answer, very frustating, think I may need to download a music manager or something