Dark suit and tie. Preferably a dark colored tie with polished shoes. Looking like you care about your appearance means a lot. It shows that you put forth some effort for the occasion and shows respect for the deceased and the family too.
I’ll second the Steely Dan - Aja mention below. May be the absolute best sounding album I own. Blue Mountain- Dog Days too. Damn that one takes me back. Some others is no particular order:
Any of the recently released Beatles Mono albums. Just unreal quality.
Ryan Adams - Heartbreaker
The...