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  2. Pure tone - Wikipedia

    en.wikipedia.org/wiki/Pure_tone

    A pure tone's pressure waveform versus time looks like this; its frequency determines the x axis scale; its amplitude determines the y axis scale; and its phase determines the x origin. In psychoacoustics, a pure tone is a sound with a sinusoidal waveform; that is, a sine wave of constant frequency, phase-shift, and amplitude. [1]

  3. Music and mathematics - Wikipedia

    en.wikipedia.org/wiki/Music_and_mathematics

    A musical scale is a discrete set of pitches used in making or describing music. The most important scale in the Western tradition is the diatonic scale but many others have been used and proposed in various historical eras and parts of the world.

  4. What is the time value of money? - AOL

    www.aol.com/finance/time-value-money-204611483.html

    The time value of money is the idea that receiving a given amount of money today is more valuable than receiving the same amount in the future due to its potential earning capacity. If you invest ...

  5. Musical tone - Wikipedia

    en.wikipedia.org/wiki/Musical_tone

    Traditionally in Western music, a musical tone is a steady periodic sound. A musical tone is characterized by its duration , pitch , intensity (or loudness ), and timbre (or quality). [ 1 ] The notes used in music can be more complex than musical tones, as they may include aperiodic aspects, such as attack transients , vibrato , and envelope ...

  6. Sine wave - Wikipedia

    en.wikipedia.org/wiki/Sine_wave

    The displacement of an undamped spring-mass system oscillating around the equilibrium over time is a sine wave. Sinusoids that exist in both position and time also have: a spatial variable x {\displaystyle x} that represents the position on the dimension on which the wave propagates.

  7. Sine and cosine - Wikipedia

    en.wikipedia.org/wiki/Sine_and_cosine

    In mathematics, sine and cosine are trigonometric functions of an angle.The sine and cosine of an acute angle are defined in the context of a right triangle: for the specified angle, its sine is the ratio of the length of the side that is opposite that angle to the length of the longest side of the triangle (the hypotenuse), and the cosine is the ratio of the length of the adjacent leg to that ...

  8. Glossary of music terminology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_music_terminology

    A Picardy third, Picardy cadence (ˈpɪkərdi ) or, in French, tierce picarde is a harmonic device used in Western classical music. It refers to the use of a major chord of the tonic at the end of a musical section that is either modal or in a minor key. piatti Cymbals, generally meaning a pair of orchestral clashed cymbals piena

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!