21 Swings: An exercise of musical co-operation

This is such a wonderful project and such a shame it's only a temporary installation.

Aside from the idea of co-operation that the piece explores, i.e. the music changes when the participants wok together, I just love the playfulness of it. Every person in the above video has a smile on their face. Oh, and the swings lighting up at night, genius.

Love, love, love it.