How to get more music on minecraft?

"How To Create Music In Minecraft"

http://www.worldofminecraft.com/content/how-put-your-own-music-minecraft
"How To Put Your Own Music Into Minecraft"

http://www.minecraftwiki.net/wiki/Music_Discs
"Minecraft Music Discs"

http://crafthub.net/2010/10/31/all-of-minecrafts-music-in-one-place/
"All Of Minecraft's Music In One Place"

I have a feeling you mean how to get it to play more often. I'm sorry but I can't help you really with that. It's really cool music though and it would be awesome if you could change the settings or something…