How to get songs on music (iPhone) without using my laptop and paying on iTunes?

How can I get songs on music (iPhone) without using my laptop and paying on iTunes?

You can get apps that alow you do so and download them of the in built browser they have however song quality isn't as good

Spotify

As far as I know you still need a computer. First I go to youtube, second in another tab window i go to http://www.youtube-mp3.org/.
I go back to youtube enter a song or band and click on the video i like; if that's the version i want, I highlight, copy the link address and paste it in the space on the converter and click convert.
click down load and it stores in your computer.
the i upload it to my itunes; sometimes it uploads automatically. And then put it on your phone. I have over 500 songs and I only paid for about 100.
Its easy, even a 40 year old can do it.