This isn’t completely true. The right of assembly is a constitutional right in Italy within small limits (the assembly must be peaceful, without firearms, and requires a notice to local authorities if it uses a public space, see art. 17.

Now, I don’t believe that a rave party falls within those protections as it isn’t protected speech (and I don’t believe there is a place where it is).

Italy will continue to have protests and marched, usually with music because Italy.