Just about the first thing you learn when you start playing guitar is how to tune your instrument, but unless you’re a musical prodigy with perfect pitch, chances are you’ll need some assistance in ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. I took ...