I've got tracked music, all of my samples are my own, what do I need to do next? =)
I'd recommend you check out the OpenArena IRC channel. There you will be able to talk to the main developer/s about your music & implementing it into OA.(That's if it ticks all the right boxes, which it should do being tracker.)
If you have a preferred IRC client then here's the info you need: irc.anynet.org #openarena
Else use the java client, there a link to it in the wiki: http://oachat.opencontentgames.org/
And there also the CGI IRC client: http://kick52.com/Dump/%23oa/ic.cgi
I haven't tried any of them so if they don't work google for a IRC client for your Operating System.
Hope this helps you.
Any links to your music?