What is an oratorio? how does it differ from an opera? (can you guys give me a short, simplified answer so that i can understand, i would really appreciate that : -)

Embellishments area. ornamental tones not printed in the music that seventeenth- and eighteenth-century performers were expected to add to the melody. b. music created at the same time it is performed. c. notes printed in the music that embellish the melodyd. obsolete in contemporary performances

What made this representation of the virgin mary revolutionary

A. what should the time signature be for the b. every note in this example is (write the letter name.) c. circle all eighth notes. d. how many beats does the rest in the first measure get? e. give the example a final barline. bonus: include a dynamic marking of your choice.