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  2. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    Glossary of HVAC terms. HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized ...

  3. List of musical symbols - Wikipedia

    en.wikipedia.org/wiki/List_of_musical_symbols

    Musical symbols are marks and symbols in musical notation that indicate various aspects of how a piece of music is to be performed. There are symbols to communicate information about many musical elements, including pitch, duration, dynamics, or articulation of musical notes; tempo, metre, form (e.g., whether sections are repeated), and details about specific playing techniques (e.g., which ...

  4. Harmonic series (music) - Wikipedia

    en.wikipedia.org/wiki/Harmonic_series_(music)

    The harmonic series (also overtone series) is the sequence of harmonics, musical tones, or pure tones whose frequency is an integer multiple of a fundamental frequency. Pitched musical instruments are often based on an acoustic resonator such as a string or a column of air, which oscillates at numerous modes simultaneously.

  5. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    In the lower middle is the capacitor. Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality.

  6. Glossary of music terminology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_music_terminology

    Glossary of music terminology. A variety of musical terms are encountered in printed scores, music reviews, and program notes. Most of the terms are Italian, in accordance with the Italian origins of many European musical conventions. Sometimes, the special musical meanings of these phrases differ from the original or current Italian meanings.

  7. Fermata - Wikipedia

    en.wikipedia.org/wiki/Fermata

    A fermata (Italian: [ferˈmaːta]; "from fermare, to stay, or stop"; [ 2 ] also known as a hold, pause, colloquially a birdseye or cyclops eye, or as a grand pause when placed on a note or a rest) is a symbol of musical notation indicating that the note should be prolonged beyond the normal duration its note value would indicate. [ 3 ]

  8. Sheet music - Wikipedia

    en.wikipedia.org/wiki/Sheet_music

    Sheet music can be used as a record of, a guide to, or a means to perform, a songor piece of music. Sheet music enables instrumental performers who are able to read music notation(a pianist, orchestral instrument players, a jazzband, etc.) or singers to perform a song or piece.

  9. List of compositions by Scott Joplin - Wikipedia

    en.wikipedia.org/wiki/List_of_compositions_by...

    The following is a complete list of musical compositions by Scott Joplin (November 24, 1868 – April 1, 1917). Scott Joplin was born in Arkansas in around 1867, just outside Texarkana , and was a street performer before settling in Sedalia, Missouri , St. Louis, Missouri , and finally New York City where he died in 1917.