I Don't Know How to Love Him
was sung by the Mary Magdalene character in Andrew Lloyd Webber
's Rock Opera, Jesus Christ Superstar
That I came to sing this myself came surprisingly (for me that is) in 2006 as a bass singer in Die Zeitlupe
. The bass part befittingly is dowsed with "doo doo"'s complementing the delightful upper voices.
This SATB version in an F♭
-major arrangement by Henry O. Millsby can be found in 4 Voices
published by Edition Helbling