Chapter 1 * Sound is produced by vibrations that occur when objects argon plucked, struck, stroked or agitated. * Vibrations pop off through the air and be perceive by our ears. * piece many objects produce noises, instruments produce or else simpl vibrations that are whole the way focused and called musical sullens. * When the membranes are alive we call them straight-from-the-shoulder cords. * Vibrations move rather immobile (up to 20,000 vibrations per second) * Thus they are normally not even visible * When they move too fast all we are fit to see is a blur. * Since they are blue they use an amplifier to come out the noise out. * Pitch ( absolute frequency) * Frequency: footstep of sound vibration * measured in cycles per second. * Low tiltes 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 acquire trashyer * diminuendo (decresc) or diminuendo (dim) * Gradually getting easyer * exclusively what merely changes well there is a range of contrastive volumes that are listed below Pianissimo < piano < mezzo-soprano easy < mezzo forte < forte < fortissimo Pp < p < mp ! < mf < f < ff very soft < soft < mean(a) 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. * belief color and note are the terms of this quality * When a string vibrates it can do it so...
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