Edelweiss

Awoke this morning to the sound of "Edelweiss" (from The Sound of Music). What's particularly strange is that this is the second time I've heard this song here this week (we came across about 20 couples waltzing to it outside the Workers' Stadium last weekend). At first I thought it was our new neighbour upstairs who seems to practice the piano, the violin, the saxophone, and what someone more generous than I might call "singing" (even calling it karaoke would be gracious) throughout the day. Turns out it was a brass band playing for what looks to be a shop opening... how did this song get so popular over here?

Update: Now I've got it stuck in my head again... gah!