Some features are disabled in mute-mode to make sure you will not accidently save, download or comment on a different jamtrack from the one you are currently hearing. You may either lift the mute-mode to download or interact with the currently displayed remix, or move to the currently playing track with the green GOTO button.
Music on Wikiloops is like a box of Chocolates..Ya never know what you're gonna get. In this case it's some geezer on the West Coast of USA with too much time on his hands honking on a sax :)
How do I find more tracks featuring a musician I like?