Via utnereader:

Musical obsession of the day: world’s longest marimba (sort of) played by an autonomous wooden ball (sort of). As Geoff Manaugh of BLDGBLOG puts it: “Landscape-scale musical instruments are an unfortunately under-explored typology. We need more wave organs and forest xylophones, more Aeolian harps and conspiratorially whistling infrastructures.”

Looks like this is a promotional piece for a (Japanese?) mobile phone brand, but still cool.

I love the guerrilla percussionists who play in this short, “Music for One Apartment and Six Drummers.” (Must see their 2010 film, "Sound of Noise.“) After viewing their work, your relationship with everyday objects will be changed forever.