Bollox indeed to you Smallpiper. Pied Piper's argument(and yours) depends on the word "session" having originally meant "tune session". That's why my playing the age card is perfectly relevant. It is a FACT that when I was young "sessions" could refer to singing. Maybe they didnt in your part of the world, but they did in mine. So anybody is perfectly entitled to use the word session to include songs, and not be accused by Pied Piper of perverting the meaning of the word. But here is another possibility,I agree, which is that Pied Piper is much older than me, and that he is referring to an era before mine when he was around and session meant tune session. Tha's why I asked his age.: it's kind of critical: whichever one of us is older, their definition of session takes precedence in historical terms.
    I'm not talking about what makes a good session, or how to behave at them. I am quoting a fact, not an opinion.