What does movable do refers to in music

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.

Who is responsible for making sure that the sound design plan in us u who is responsible for making sure that the soundesign plan in a theatrical production is feasible?

In "a dream within a dream," which phrase is a context clue to the meaning of grasp / them with a tighter clasp?