Puzzle 35 – “Just a Little Puzzlin’ Early in the Mornin'”

puz here / pdf here / solution here

Another themeless puzzle this week with a musical seed entry at 40-Across; the title refers to another track on the (phenomenal) record in question. Favorite clues here lean more trivia than wordplay, as in 52-Across and 45-Down.
Comments welcome, as always. Hope you enjoy, friends… happy solving.