Aca Deca Music Basic

Front 1

Amplitude

Back 1

The maximumdisplacement of a wave particle fron its equilibrium position; is independent of frequency; measured as a ratio of two sounds' intensities

Front 2

Attack

Back 2

The first stage of the sound envelop;describes the sound produced before the tone-producing vibration is achieved

Front 3

Beats, acoustic definition

Back 3

Variations in volume detected by the ear when sound waves of slightly differnet frequencies overlap

Front 4

Chromatic scale

Back 4

Collection of 12 equally spaced pitches per octive agreed upon by western musicians for tuning; utilizes equal temperament tuning

Front 5

Compression

Back 5

the relatively high ptessure regions in a sound wave where the molecules of the mediun are pushed closer to gethe than when at equilibrium

Front 6

Consonance

Back 6

Haromonious quality that results fron certain frequency ratios between tones

Front 7

Constructive interference

Back 7

The overlapping of waves such that their crests and troughs match; the overlapping of
' in phrase" waves leads to a resultans wave with amplitude equal to the sum of the original waves amplitudes

Front 8

Crest

Back 8

the hight point of a wave; the farthest from equillibrium a wave particle moves in the position direction