Conversation so far:
Who were some of The Sound of Music Broadway revival cast members?
The Broadway revival of The Sound of Music starred Rebecca Luker as Maria and Michael Siberry as Captain von Trapp. It also featured Patti Cohenour as Mother Abbess.
What song did Patti Page sing for The Sound of Music ?
In 1959, singer Patti Page recorded the title song from The Sound of Music for Mercury Records on the day that the musical opened on Broadway.
Who was the male singer on The Sound of Music recordings?
Håkan Hagegård was the male singer on The Sound of Music recordings.

Question: What songs did he sing?
Self-contained rewrite: What songs did Håkan Hagegård sing in The Sound of Music recordings?