Contract Samples Including Retirement Clause Creating A Wedding Vendor Contract For Musician?

Creating a wedding vendor contract for musician? - contract samples including retirement clause

We are looking for a musician to be played at our wedding. Do not do it professionally, but rather a friend of my mother. He has no contract, but the friend that I ... I would rather that his words.

Can someone lead me to a sample / template for the marriage contract for musicians, which could be used? Or, give me their opinion to be what is contained in the contract? I'm not going to forget something, then bites me in the ass later.

Thank you for your answers!