Answer:
Step-by-step explanation:
The option that is NOT one of the innovations mentioned is "Cubism". "Cubism" is a visual art movement characterized by the use of abstract and fragmented forms to represent reality. The other options listed, "The player piano paper roll", "Sound spectrograph of 1944", and "Percy Grainger's Free Music", are all innovations in the field of music. The player piano paper roll was a system for recording and reproducing music on a player piano. The sound spectrograph of 1944 was a tool for visualizing sound waves and analyzing their frequency and intensity. Percy Grainger's Free Music was an experimental musical composition that utilized new techniques for controlling and manipulating sound.
The player piano paper roll: The player piano paper roll was a system for recording and reproducing music on a player piano. It worked by punching holes in a long paper roll, which represented the notes of a piece of music. When the roll was played on a player piano, air would be sent through the holes to activate the keys of the piano and play the notes. The player piano paper roll was an early form of mechanical musical reproduction and helped to popularize music in the late 19th and early 20th centuries.
Sound spectrograph of 1944: The sound spectrograph of 1944 was a tool for visualizing sound waves and analyzing their frequency and intensity. It worked by analyzing sound waves and creating a graphical representation of their frequency and intensity over time. This allowed scientists and musicians to better understand the structure and characteristics of different sounds. The sound spectrograph played an important role in the development of electronic music and audio processing technology.
Percy Grainger's Free Music: Percy Grainger was an Australian-born composer and pianist who was active in the early 20th century. He is best known for his experimental musical composition "Free Music", which utilized new techniques for controlling and manipulating sound. Grainger developed a system for controlling the pitch, volume, and timbre of sound using various methods, including a keyboard and dials. This allowed him to create new and innovative musical sounds, which challenged traditional musical forms and paved the way for the development of electronic music.
These three innovations represent different aspects of the evolution of music and its technology. The player piano paper roll was an early form of mechanical musical reproduction, the sound spectrograph of 1944 helped to advance our understanding of sound and its properties, and Percy Grainger's Free Music was a pioneering experiment in the field of electronic music.