Riverdale park wedding and a serenade

Here's a magic wedding - just the family, under a tree in Riverdale (no baseball game in session), and another stump to sign all the papers.  But then the parents surprised the couple with a song - and all the small gifts mentioned in the lyrics.  I was wondering what the guitar was for - and then we all got a wonderful surprise.

After the wedding, everyone happy

Family serenade for the new couple (singing the verses and presenting a tiny gift)