I'm a 'recycled muso' Don.
To Quote from my thread (oh dear, now he's at it too!)

"A Recycled Muso is a person who has already learnt to play one Musical Instrument, and is starting to learn another."

I never saw the word as pejorative, not sure that other Aussies intend it to be pejorative either. It's a fairly common sort of Aussie slang where we shorten words like 'musician' to muso'.

"If you are expecting people to come to hear you perform, and you are charging them money to do so, you owe it to them to give them their money's worth. Which means that you know your material and that you present it well."
"A professional, after all, is someone who receives sufficient payment for what he or she does to make a living at it"

Having spent some considerable time working in Amateur Theatre, I can assure you that many such unpaid people DO have a very "Professional" Attitude. That is, they 'owe it to their audience to give them their money's worth. Which means that they know their material and that they present it well.' If you want REAL AMATEURS in theatre, I suggest you look up Mr Green's "The Art of Coarse Acting" to gain an understanding of the difference. I have been so bold as to previously suggest that WAV is truly "A Coarse Folk Singer".

QUOTE
A coarse actor is "one who can remember his lines, but not the order in which they come. One who performs . . . amid lethal props. The Coarse Actor's aim is to upstage the rest of the cast. His hope is to be dead by Act Two so that he can spend the rest of his time in the bar. His problems? Everyone else connected with the production." (Michael Green)
UNQUOTE

You can make your own translation...