Historical clue formulations

• Best Picture winner of 1965 ... or a description of the ends of 17-, 30- and 45-Across? — 2024-08-20
• Rodgers and Hammerstein's "Do-Re-Mi" show, with a hint to this puzzle's theme — 2022-05-10
• "Noted" 1965 film? — 2018-11-19
• 1959 Rodgers and Hammerstein hit — 1994-03-07