Avel on Purim

I’m in the year of mourning for a parent (9 months)

On Purim, can I attend an event, such as a Purim Carnival, where live music is being played?
Can I dress is a somewhat silly manner (like wearing an oversized hat, absurd necktie etc) when going to hear Megillah?

I’ll get back to you on this. Its not simple.

Yes, on purim this is fine.

Thank you.