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Understanding the Materials of Music: Sound and Time

Explore the fundamental elements of sound in music, from vibrations and compression to pitch, intensity, duration, and timbre. Learn about the properties of sound and how they shape musical compositions. Discover the connection between instruments and the unique qualities of sound they produce for an enriching musical experience.

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Understanding the Materials of Music: Sound and Time

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  1. The materials of music: Sound and time

  2. What is sound? • The sensation perceived by the organ of hearing (ear) when vibrations (sound waves) reach the ear

  3. Vibration • Periodic motion of a substance • Instruments: strings, sounding boards, etc. AND the air inside and around the instrument vibrate

  4. Compression and rarefaction -Happens when you activate the sound source

  5. Frequency • Refers to the number of compression-rarefaction cycles that occur per second • Human range: 20 to 20,000 cycles per second Video https://www.youtube.com/watch?v=zKwpv8mZHRM

  6. FOUR PROPERTIES OF SOUND • Pitch – how high or low a sound is • Intensity – how loud or soft a sound is • Duration – how long or short a sound is • Timbre – quality or color of a sound

  7. PITCH • The greater the number of sound waves, the higher the pitch • TONE – a musical sound of definite pitch

  8. Intensity (dymanics)

  9. DURATION (Meter and rhythm) • METER = Regularly recurring pulses of equal duration (STEADY BEAT) FORMS MEASURES • DUPLE = Two-beat • TRIPLE = Three-beat • RHYTHM = Patterns of uneven durations Can be almost any length

  10. TIMBRE • Permits us to distinguish between a clarinet and an oboe, for instance • http://www.musictechteacher.com/music_quizzes/aq_identify_the_instrument_sounds/quiz.html

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