Martin was trying to sell pumps for circulating water in decorative goldfish ponds when he realized that the reason he was not able to sell many pumps was the weight of the model he was trying to sell. he approached his firm's engineering team with the idea to replace every possible metal part of the pump with a hard plastic substitute. after making the change in design, the pumps became lightweight and were better able to meet customers' requirements. as the martin identified an opportunity, saw the project from its conception to the development of a lighter model pump.

a. change agent
b. gatekeeper
c. driver
d. spotter
e. champion

answer assertive;

among other factors, composers started writing dynamic markings in their scores because "new instruments allowed for more dynamic ranges and contrast."

dynamics allude to the loudness or softness of music. dynamics offer an approach to demonstrate articulation in sheet music. they to drive the enthusiastic substance of music through volume and force. maybe you could alter both the volume and the shading profundity on your screen at the same time. we can likewise think about the force side of elements as the quality of a note. a few notes are intended to be played delicately and gently, while others are intended to be played all the more firmly.  

some dynamics markings have a letter 'm,' which remains for mezzo, signifying 'medium.' so a mezzo piano unique stamping resembles this (mp) and intends to play medium calm, while a mezzo specialty dynamic resembles this (mf) and intends to play medium loud.