Koussevitzky Sings Kel Malei Rachamim After WW2

Moshe Koussevitzky (1899-1966) is still remembered by many as the greatest chazzan of the post-World War II era. He had a graceful and powerful lyric tenor with a phenomenal upper register with
which he could do wonders. For sheer artistry, it is hard to beat his “Hashem Malach,” “Esa Einai” or “Ledor Vador.” Koussevitzky’s rendition of Israel Schorr’s “Sheyibaneh Beis Hamikdash” is his most famous recording.

I am told this was recorded some time after World War 2.