Rob, I have the fundamental frequencies of each note on the scale saved in an excel file in my phone/PDA. I can probably send this to you if you like. Here's a wikipedia article on the topic that can get you started: http://en.wikipedia.org/wiki/Piano_key_frequencies

It can help if I'm debugging a feedback issue, don't have access to an analyzer, but do have access to a synth with a sine-lead output. It helps to match up with where in a graphic EQ to notch something out. Normally I can do this by ear as I have fundamental frequencies of octave bands sort of 'memorized' and I can localize to just a few bands on an EQ at the first go.

To Don's point, I have started a small piano tuning business. I tune the middle octaves as best I can with a tuner on the middle string, then by ear on the two sides. Then outer octaves I do strictly by ear.

Here's a couple clips of the very first two pianos I tuned last year:

http://rockstarnot.rekkerd.org/misc/COTB_before_and_after_tuning.mp3

http://rockstarnot.rekkerd.org/misc/story_clark_before_after.mp3

I played the 2nd clip, the first clip was my kid's piano teacher playing her piano.

Each one is unique and each one had some bum tuning pegs that I couldn't get to stay tuned. There's a special tool for those to tap the peg into the block - cross threading it a bit into the wood. I don't have that tool. Still learning, still acquiring tools.

Last edited by rockstar_not; 12/03/09 12:47 PM.
My Songs, photos, writing,etc.
My Sound Cloud