* Sound is produced by vibrations that occur when objects argon plucked, struck, stroked or agitated.
* Vibrations pop off through the air and are heard by our ears.
* piece many objects produce noises, instruments produce rather simpl vibrations that are whole the way focused and called musical sounds.
* When the membranes are alive we call them straight-from-the-shoulder cords.
* Vibrations move rather fast (up to 20,000 vibrations per second)
* Thus they are normally not even visible
* When they move too fast all we are able to see is a blur.
* Since they are blue they use an amplifier to send the noise out.
* Pitch ( absolute frequency)
* Frequency: footstep of sound vibration
* measured in cycles per second.
* Low pitches is low frequency and is caused by long vibrations while high pitch is caused by short vibrations
* dynamics (amplitude)
* Is the level of strength of sound vibrations or the amount of energy they contain and convey.
* Measured in decibels
* Dynamics: the level of sound
* Changes in dynamics potty be fulminant or gradual
* Crescendo (cresc.
)
* Gradually getting louder
* diminuendo (decresc) or diminuendo (dim)
* Gradually getting easyer
* But what merely changes well there is a range of different volumes that are listed below
Pianissimo < piano < mezzo-soprano Piano < mezzo forte < forte < fortissimo
Pp < p < mp < mf < f < ff
very soft < soft < medium soft < medium loud < loud < very loud
* note of hand colors: Overtones
* At whatever pitch and whether loud or soft musical sounds differ in heir command quality, depending on the instruments or voices that produce them.
* Tone color and note are the terms of this quality
* When a string vibrates it can do it so...
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