It's not refreshing every second minute, and my intentions are not to do that either. If you would like a current song playing thing that auto updates I will program a feature that does so. (An information page, small, tiny and even more fastloading)
If you like to know what is playing you must anyway click the browser and get that one up so you might as well hit F5 while you are at it
No need to put extra load than necessary on the server itself by having it update the page every 2 minutes