1. Download this
http://audacity.sourceforge.net/latest/audacity-win/audacity-win-1.2.6.exe2. Install it
3. Open it
4. Open a Song of your choice by going Files/Open..
5. Then Open the Song that you have chosen
6. Use the Default tool to select parts
This is what I do:
7. Select a Part that repeat then Copy that hole part
8. The goto Files/New..
9. Then Click Project/New Audio Track
10. Paste the Repeating part
11. Goto Files Export Ogg Vorbis..
12. Goto the Blockland Folder then goto base/data/sound/music/
13. Save it as any thing you like e.g. My song.ogg
That should about do it.
14. Run Blockland then start a Server then go into Music List then Tick Your new Song.