Where can I get music for iPhone?

So there's certain music I'd like to get on my iphone4s, but it's not on the apple iTunes store, is there another way to get music on my iphone4s that isn't from iTunes like an app?

How to print photos in store in boots?

I'm making a scrapbook and need to print many 6x4 photos. I wasn't sure how much it costs per photo (i can only find the online prices) so does anyone know? (this is in th uk, cornwall) Also what kind of form do the photos need to be in? Like on a memory card, SD card or on a iphone?

Any way to see girlfriend's iphone 5 texts or call?

So I've caught my girlfriend talking to another guy on the phone at night and been texting all day. I checked her phone and saw a text from someone and i asked who is that and she said she doesn't know. So i told her i'm about to call and ask. She broke down and told who it was and told me all the details of them talking but she had already delted their texts and call info. This isn't her 1st or 2nd time doing this but she said this would be the last time ever.(until she gets caught trying to hide it again) she said i can check her phone for everything from now on. So is there anyway i can see her texts and calls even if she deletes them? I don't even have to see the text just want to know what number its from. I heard something about Apple ID?