useless trivia: What Word Means: A Bush - A Cordial?

Questions

(It.) - Left hand.?

(Ger.) - An opera term for a 'sitting rehearsal' when all performers sing through the roles while sitting down, with the accompaniments played by the orchestra.?

sixteenth note - one fourth of a quarter note.?

- The chord containing the sixth and third intervals from the bass note. Same as first inversion of a triad.?

(It.) - Becoming slower.?