Do I need P Visa to play in CANADA and USA for free?

[MSamber]

In May 2017 I will play with my band (from Italy) in Canada and USA, for free. Four gigs.
We are not famous, we are not professional musicians.

We know Italian bands like us that come to play in USA without P Visa last summer (2016).
They told to the officer: "We are here just for promotion and unpaid shows"

Do we need a P visa?

Thank you very much.

[inadmissible]

Amateur artists can come to the US to jam and play on a B-2 tourist visa or the visa waiver program

Amateur artists are defined as those who normally performs without remuneration

"A performer who is normally compensated for performing cannot qualify for a B-2 visa even if the performer does not make a living at performing, or agrees to perform in the United States without compensation"