wbwolf , Starting off with a two-fer, two EPs for my #JapanJuly chronological review of Japan related vinyl collection.
Various "China Nights- World Famous Japanese Melodies" JP Columbia 1954
https://www.discogs.com/release/1962174-Various-China-Night-World-Famous-Japanese-Hit-MelodiesVarious 「ふるさとの民謡大全集 <第15集> 山形-2」JP King 1967
("National Folk Song Collection Vol 15, Yamagata pt. 2")
https://www.discogs.com/release/9666334-Various-ふるさとの民謡大全集-山形-2