How to download music onto the Iphone 5c?

I've just received a new Iphone 5c, I've gotten all my music off of my old Iphone, the 4s and put it onto my new phone. I was wondering, how can I download music for free onto my Iphone 5c?
All the music off of my 4s was purchased by myself via ITunes, which as i'm sure you can appreciate, is very expensive as a consequence people often tell me that I'm "dumb" to pay for my music, so I was wondering if anyone could give me some advice how to download music for free and then put it onto my ITunes and onto my new Iphone.

Go to the istore or any app site and search for 'free mp3 downloader'. There will be plenty to download from there and all free.

1. Insert the audio CD into your computer's optical drive, and click the iTunes icon on your Mac's screen dock to run iTunes. For PCs, double-click the iTunes icon on your desktop or click "Start" in the lower-left corner of the screen and click "Program," "iTunes" and "iTunes."
2. Click CD tab in the iTunes sidebar, and click the "Import CD" button in the upper-right corner of the iTunes program window to begin the importing process.
3. Plug the wide, flat end of the USB cable into your iPhone, and plug the other end into your computer's available USB port. Click the iPhone tab in the iTunes sidebar, and click the "Music" tab in the main iTunes window next to the "Summary" tab.
4. Check the box next to "Sync Music" and select either "Entire music library" or "Selected playlists, artists and genres." For the latter option, check the box next to "Recently Added" and click the "Apply" button.
5. Unplug the iPhone from the computer once the synchronization finishes, and push the "Home" button on the iPhone's screen. Tap the "Music" icon on the screen and tap the "Playlists" icon at the bottom of the screen. Tap the "Recently Added" tab to view the imported songs.