Well, timbre is related with the envelope of the acoustic wave. The form of the wave will be received by your ear and then translated to electrical impulses to your brain. I think, that we are adapted to consider "continuous and smooth waveforms" as "nice", so timbre will be one of the first characteristics that your brain will analyze.
They are related because formal properties are how you apply sensory properties. They are the choice and arrangement of the elements of art, or sensory properties
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A scale is a set of musical notes ordered by fundamental frequency or pitch. A scale is usually ordered by increasing pitch and is called an ascending scale. Scales generally span a single octave. Scales help you understand music, how to solo, improvise, analyse chords, chord progressions and songs among many other aspects of music.
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