Apparently, “Whole Wide World” is is a classic, two-chord punk melody from 1977. Will Ferrell also sang it in 2006 in “Stranger Than Fiction,” while playing acoustic guitar. But I had never listened to it until I turned on 88.9 KXLU today. Sometimes, it astounds me how much good music there is that goes unheard. Then, you accidentally encounter a song or someone turns you on to a band, and you think, “Why have I not heard this before?” For me, this is one of those songs.