I need help asap Will mark u the brainliest Instruction: Under each measure, write the key in which each measure has indicated.

Top to bottom, left to right:

G Major, F Major, D♭ Major, E Major, A Major, B♭ Major, A♭ Major, A Major (again), C♭ Major, C♯ Major, B Major, A♭ Major (again)

Explanation:

the correct answer for this question is:

it is system invented in 1872 that produced the first illusion of movement. basically it was a disk with a series of drawings around the edge, showing the same object in slightly different poses. when it was spun, it created the illusion of movement.

found this online : )