Music startup Tomahawk has unveiled its latest thing: a hack created for this month’s Amsterdam Music Hack Day. It’s called Toma.hk, and the company describes it as “an easy way to share links to songs that work for virtually everyone, not just people that use the same music service that you do”. The idea being people share a link with friends, which when clicked takes them to a Toma.hk song page, which resolves the track against a number of services, then plays it from whatever one they have access to. The links can be created by searching for an artist name and song title on the site, or by right-clicking on a track in the Tomahawk desktop player. A clever idea.