Are there any halachos of mourning on the yarzheit of someone that one would sit shiva for other than for a parent (e.g. sibling or spouse)? I believe that for parents, some people fast, and may not listen to music, go to weddings etc., but what about for other relatives?
I know that on my grandparents yarzeits the grandchildren don’t watch tv just like we didn’t watch during the week of shiva, when my parents were sitting for their parents. (Yes, I know we shouldn’t be watching tv at all…)