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Dynamics in a piece should be interpreted relative to the other dynamics in the same piece. For example, pp should be executed very softly, but if ppp is found later in the piece, pp should be markedly louder than ppp. More than three p s (ppp) or three f s (fff) are uncommon. piano (p) Gently (i.e. played or sung softly) (see dynamics) piano ...
The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. More simply, the speed of sound is how fast vibrations travel. At 20 °C (68 °F), the speed of sound in air, is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.91 s or one mile in 4.69 s.
In music, the dynamics of a piece are the variation in loudness between notes or phrases.Dynamics are indicated by specific musical notation, often in some detail.However, dynamics markings require interpretation by the performer depending on the musical context: a specific marking may correspond to a different volume between pieces or even sections of one piece.
At Mach 0.65, u is 65% of the speed of sound (subsonic), and, at Mach 1.35, u is 35% faster than the speed of sound (supersonic). An F/A-18 Hornet creating a vapor cone at transonic speed just before reaching the speed of sound. The local speed of sound, and hence the Mach number, depends on the temperature of the surrounding gas.
The first example of adaptive music is generally said to have been in Space Invaders by Taito in 1978. The game's simple background music, a four-note ostinato which repeats continuously throughout gameplay, increases in tempo as time goes on and the aliens descend upon the player. [3]
Pitch scaling is the opposite: the process of changing the pitch without affecting the speed. Pitch shift is pitch scaling implemented in an effects unit and intended for live performance. Pitch control is a simpler process which affects pitch and speed simultaneously by slowing down or speeding up a recording.
According to Edward E. Gordon the process of reading music, at least for trained musicians, involves a process, called "inner hearing" or "audiation", where the music is heard in the mind as if it were being played. [20] This suggests that while sound is often considered a required aspect of music, it might not be.
The crest factor, which is the difference between the signal's peak and its average power, [31] is on occasions considered as a basis for the measure of micro-dynamics, for instance in the TT Dynamic Range Meter plug-in. [32] Finally, R 128 LRA has been repeatedly considered as a measure of macro-dynamics or dynamics in the musical sense.