[Not for school but help pls] If I had an infinite sequence of notes, would I run out of possibilities

Which statement is true with regard to beethoven? a. ludwig vin kochel catalogued more than six hundred of his compositions. b. he was the official composer for the powerful and rich eszterhazy family. c. he produced the best piano sonatas and the “ninth symphony” after losing his hearing. d. he wrote the well-known opera “the magic flute” during the last years of his life.

Pitches moving in a downward pattern are called

Which style of polyphony uses a borrowed chant and arranges several new melodies and texts above and unrelated to the chant?