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In an equal temperament, the distance between two adjacent steps of the scale is the same interval. Because the perceived identity of an interval depends on its ratio, this scale in even steps is a geometric sequence of multiplications.
Musical temperament. Comparison of notes derived from, or near, twelve perfect fifths (B ♯). In musical tuning, a temperament is a tuning system that slightly compromises the pure intervals of just intonation to meet other requirements. Most modern Western musical instruments are tuned in the equal temperament system.
Temperature and Temperature Scales. Temperature is a measure of the average kinetic energy of the particles in matter. In everyday usage, temperature indicates a measure of how hot or cold an object is. Temperature is an important parameter in chemistry.
This glossary of chemistry terms is a list of terms and definitions relevant to chemistry, including chemical laws, diagrams and formulae, laboratory tools, glassware, and equipment.
What’s a Scale? ‣ A scale is a pattern of notes, usually within an octave ‣ In Western music we use the diatonic scale. ‣ This scale contains seven distinct pitch classes and is part of a general class of scales known as heptatonic ‣ Doubling the frequency of a tone in this scale requires going up by 8 notes: hence the term “octave”
Equal-tempered refers to a musical tuning system where the octave is divided into 12 equal parts, known as semitones. In this system, the ratio of the frequency of any note to that of the note an octave higher is always a constant, making each half step (semitone) the same across the entire scale.
The equally tempered scale takes any particular note's frequency and multiplies it by the twelfth root of two, which then gives the frequency for the next higher note on the scale. In modern music, It is essentially agreed that the pitch of Middle A will be 440 Hz.
