Blazing Saddles: What was everyone's surname in the town?

Questions

(It.) - Indication to pianists to use the left (soft) pedal to reduce the volume.?

- The sound of two or more voices singing simultaneously at the same pitch. Unison song, a song for several people all singing the same tune.?

(Ger.) - Restless.?

(Ger.) - Under, lower.?

- The upward movement of a conductor's hand or baton, especially indicating the beat before the main accent in a bar of music.?