In the city of Austin, Texas, classical music station KMFA-FM created a large-scale metronome just ahead of its 50th anniversary next year.
The six-foot by ten-foot installation includes a handle that moves in time to the "Tempo of Austin," as reflected by the number of social media users that tweet about the unique device. The system is capable of picking up on tweets that are filtered by location-based data, effectively creating something that looks like a heartbeat for the city.
Interactive social media-connected devices of this kind offer unique ways to engage the public and share messages online. With its metronome, KMFA found that the average "pulse" of Austin was about 90 beats per minute.