I play bass for a couple bands, and my playing isn't bad. However, I'm tone deaf, so I've always had to default to someone else tuning my instrument. I've looked for countless other ways, including using a computer program (which didn't work) to buying an actual electronic tuner. Then it struck me, I could search the Android market for an app! This was the first result on my search, and when I used it, worked like a charm. I even had someone else confirm it had been tuned correctly, just to make sure the app itself had worked. All in all, great for musicians like me who can't tune worth crap. This will be a mainstay on my Nexus One. Thanks to the devs that made this!