Back in 2011 we were very impressed with guitar-teaching iPad game WildChords from Finnish startup Ovelin (Bulletin, 25-10-11), and it went on to win an award at the Midemlab contest the following January. So what has the company been up to since? Making GuitarBots, a web-based game with a similar concept: you play a real guitar in time to prompts in an animated tutorial on-screen, with the computer’s microphone picking up your playing to judge your progress. The game is now live, after being launched at the TechCrunch Disrupt conference in New York. People can play for free for five minutes a day, and get an extra five minutes (up to 35) for every friend they sign up. GuitarBots then charges, from $9.99 a month for three hours of daily play. A mobile app is on the way too, with Ovelin telling TechCrunch that it already has more than 250k users across its products.