Before I start I would like to point out that the quality of the mp3 audio files from Soundpedia is not that great. The mp3′s seem the be encoded with 32 Kbit only which is probably not enough for most users. This is therefor just a theoretical approach to downloading music from Soundpedia which can be used on other sites as well.

You do need the software Grab++, Orbit Downloader and a browser.

All you need to do is start Grab++ and let it run in the background. Click on a listen symbol or play icon on the Soundpedia website and wait until the flash player starts and loads the audio file.

Grab++ will display the mp3 with the extension .soulayer1. There will be other files listed but we only need to take care of the soulayer1 files.

Just right-click the soulayer1 file and select download from the menu. Orbit Downloader should show up the file download menu automatically.

I would suggest to rename the soulayer1 extension to mp3 and assign the correct name and artist to the song as well. This way it is much easier to know what you have been downloading.