[Choir singing.]

[Choir singing.]

[Church choir singing.]

[Children's choir singing.]

[Church choir singing.]

[Church choir singing.]

[Choir singing.]

[Portrait of a choir member.]

[Children's choir singing.]

[Men singing.]

[Woman playing the guitar as a man sings to her.]

[Group singing.]

Orphanage [Girl singing in front of a choir.]

Orphanage [Girl singing in front of a choir.]

Orphanage [Girl singing in front of a choir.]

Yugoslav American [Variant.]

[Choir practicing around an organ.]

Armenian American [Variant.]

[Man singing on a stage.]

Federal Music and the Robot: Choir.