Thought you guys might like to see my latest project, based on a BeagleBone Black:
Antique Radio Podcast Player | My Gorram Frakking Blog
I replaced the internals of a 1936 antique radio with modern electronics, such that "tuning" to a frequency begins playback of a playlist of MP3 files. Details in the above blog post, along with video, images, and a link to the GitHub source.