I think ever since I was invited to his birthday party 10 years ago, which occurred on the 30th, I continue to mistake his birthday as then, it’s really the 29th.
It still slipped my mind anyway. Fear not, he’s my main concert-going buddy so I’ll make it up to Mark pretty easily. The bigger obstacle is narrowing down the show because we have so many to choose from; we usually buy tickets to a concert as a gift. I’m open to other suggestions too. One thing that is out is physical music, aka vinyl, CDs, etc. Mark has made the move to digitizing his collection to save space.