tuner app?

[Dave Stevens]

I need to tune an instrument sometimes, anyone know of a tuner app?  
I'd like to be able to specify a frequency or note name and then read  
the frequency of a vibrating string with my netbook's mike.

Dave


-- 
If all the advertising in the world were to shut down tomorrow, would people
still go on buying more soap, eating more apples, giving their children more
vitamins, roughage, milk, olive oil, scooters and laxatives, learning more
languages by iPod, hearing more virtuosos by radio, re-decorating their
houses, refreshing themselves with more non-alcoholic thirst-quenchers,
cooking more new, appetizing dishes, affording themselves that little extra
touch which means so much? Or would the whole desperate whirligig slow
down, and the exhausted public relapse upon plain grub and elbow-grease?

--- Dorothy L Sayers, in Murder Must Advertise