A few days ago there was a question as to whether milk could or should be used to clean keytops (ivories, I think). I had poured some milk on our concrete driveway (leftover from a cat feeding). After the sun came out, the places where the milk had been was really, really white. It almost looked like it was whiter than the milk was when it was wet. So maybe the thought from yesteryear was that a little milk *in the sun* could be used for a quick whitening for ivory keytops. I'm not recommending this, by the way. Just letting you know what happened to my concrete. I still don't think milk would be good on a piano, although I do like it on my cereal. And, in case anyone was wondering, it was whole organic milk. I doubt skim would do much coloring. Blech! JF
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