How to download music for free on iphone 4?

I just bougth anew iphone 4… It has been great but the thng is, i can't download music. I had this site i used to go on my old phone (blackberry) called aimini.net and it was great but now it doesn't want to download… I tried those stupid apps and they also don't work.
What i was wondering was if there was any way i could download free music on my phone!

IPhone can't restore from backup?

My friend gave me a website to get ios7 early so I downloaded it ( i previously had ios 6.1.4). I didn't like ios7 so I downgraded back to ios 6.1.3 and it required me to restore my phone to factory settings, losing everything. I tried restoring from back up but a message popped up saying software to old set up iPhone as new and restore from backup. When I tired doing that my old phone name wasn't on the list of things I could backup from. Can anyone tell me what to do? I had some really important stuff on my phone that I didn't want to loose. How can I get my stuff back?

Dropped my charger in water?

Yesterday i was trying to paint my iphone charger with nail polish bc i heard it is ok and looks cool. I accidently dropped in water, so i dried it off and then painted it. I plugged it in and it began making a hissing sound, i figured maybe there was still water in there so i took it out and left it overnight to dry. The next morning it still made the noise. What do i do? Is my charger gone?

What DSLR camera that have good video recording result?

I was going to buy iPhone for its good video quality (of course with all iOS glory), and then I considered for handycam. Then my friend told me that DSLR, especially Nikon D5100 is a good choice since I may be interested in photography as well. Then I read this article saying that Canon is better at video recording than Nikon. Any suggestion of what camera I should buy? Preferably in the same cost range with Nikon D5100? Or Nikon D5100 is good enough? Considering I'm really new in this photography and filming thing (actually only for family purposed filming).

Can't unlock iPhone 5 (Orange won't let me)?

I purchased an iPhone 5 off eBay and I made up a story about how I got it but Orange said I have to go to the original point of purchase to unlock it.

There's another twist, I brought it to the apple store a few days after as it was damaged so the IMEI number was changed.

What should I do?

Using a generic iPhone 5 chord?

So I want to get another iPhone 5 chord from ebay for when I'm not home but I'm scared that it will hurt the battery not using the one that came with it. Does anyone use a generic on and their phone is still fine?

Should I get a samsung galaxy or iphone 5?

I need something good with battery life and the buttons don't break on me. I have an iphone 4s right now and the battery life is terrible and the buttons broke on me. Which phone takes better pictures? If I get a Galaxy, which one should I get?