So I've noticed many amateur guitar players who are able to "play along" with someone else or a tune on the stereo etc.

I'd describe it as fills or short riffs, whatever the term is.[br]I've asked them about it but they say it just comes to them or they play what seems right.

This hasn't worked for me.

I'm guessing they are identifying the key and playing a scale in that key?

Your comments are all appreciated!

Thanks