For me, this is my instrumental go to song . . .
This one was inescapable in 1965.
Also, I'm not sure how I forgot these when this thread first came out...probably because most of what they do is Christmas/Holiday music. I'm a big fan of Mannheim Steamroller. There are a vocals in a few of their tracks, but most are all instrumental (synthesizer).
Meh. Doesn't do anything for me...