Wearables, particularly smartwatches, are showing up everywhere, and they will most likely become even more ubiquitous with Apple jumping into the market. Almost all of them help us consume or control content with very simple gestures. But what if they can actually help us make content? That is the proposition that the Soundbrenner Pulse is trying to make. It's basically a wearable metronome with a bit of smarts thrown in, helping musicians stay in rhythm, whether practicing or performing, alone or with a whole band.