New harmonica players often struggle to find the right key harmonica during jams. Guitar players are driven to distraction answering their questions ...."yes, another blues in E"

I've written an article explaining how to find the harmonica key, without having to ask.

"Beginning harmonica players usually need to be told which harmonica key to use during jams. Asking the key before a song starts is reasonable, asking the key during a song is not. And, if the answer is obvious it is better to know than to ask...."

The remainder of the article is at http://www.harmonicatunes.com/whichharmonicakey