Twenty years ago, 16-year-old guitar novices would have killed for this app when they were teaching themselves Nirvana and Pearl Jam songs in garages — by ear. Today’s kids can just use Capo 3… By ...

To a guitarist, the humble capo is nothing new. For most working players it is an essential part of the musician’s tool kit; a nifty little device that clamps down on the fretboard, allowing for a ...