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UO / Music / MUS 227 / The phonograph is invented by whom?

The phonograph is invented by whom?

The phonograph is invented by whom?

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MUS 227 Midterm Study Guide


Phonograph is invented by, whom?



The Origins 

∙ Phonograph invented by Thomas Edison; could record / playback sound (low sound quality)

∙ Gramophone invented by Emilie Berliner; rotating disk (louder) ∙ Telharmonium invented by Thaddeus Cahill (sound travelled over  phone lines)

∙ Sine wave = simplest type of wave; multiple sine waves used as  building blocks to complex tones

∙ Hammond Organ invented by Laurens Hammond; used in rock, blues,  or jazz

What is Sound? 

∙ Sound = mechanical wave created by vibrating object.

∙ Speed of sound depends on medium & temperature  

(air>water>aluminium)


What are the fundamental traits of electronic music?



∙ Frequencies = # of vibrations / sec (measured in Hz)

∙ Wavelength = distance between point of compression to compression  or rarefaction to rarefaction

o Shorter wavelength = higher frequency

o Longer wavelength = lower frequency  

∙ Fundamentals (1st – 7th)

∙ Waveforms

o Square

o Triangle

o Sawtooth

Tape 

∙ Fundamental traits of electronic music

o Sound resources are unlimited

o Can expand perception of tonality

o Exists in state of actualization


What is the purpose of graphic filter?



Don't forget about the age old question of What is the history of business ethics?

o Special relationship w/ temporal nature of music We also discuss several other topics like What is the function of a vector field in physics?

o Sound becomes materials of composition

o Not affected by limitations of human performance

o Often lacks point of comparison w/ natural world of sounds ∙ Musique Concrete = music that includes real world sound recordings ∙ Acousmatic sound = sound heard w/o seeing its cause

Western Music 

∙ Rhythm = element of time in music

MUS 227 Midterm Study Guide

∙ Tempo = pace at which music moves

∙ Dynamics = loudness & softness

∙ Melody = presentation of pitches of musical sound in a linear &  horizontal manner

∙ Harmony = verticalization of pitch

∙ Tone color (timbre) = quality of sound

∙ Texture = # of layers (voices)

o Monophonic = one note sounding at a time

o Homophonic = 2 or more notes sounding @ same time but  featuring prominent melody in upper parts of layers

o Polyphonic = 2 or more independent melodies sounding @ same  time

∙ Musical form = overall structure or plan

Electric Guitar  We also discuss several other topics like When do we use conclusion in creating theory?
We also discuss several other topics like What are the characteristics of the market system?
If you want to learn more check out What is the evolution by natural selection?
Don't forget about the age old question of What are the theories of dreaming?

Graphic Filter 

∙ Cutoff frequency = point at which filter had just begun to take effect

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