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Sustain
In music, sustain is a parameter of musical sound over time. It denotes the period of time during which the sound remains before it becomes inaudible, or silent.
Sustain is the third of the four segments in an Attack Decay Sustain Release (ADSR). The sustain portion of the ADSR envelope begins when the attack and decay portions have run their course, and continues until the key is released. The sustain control is used to determine the level at which the envelope will remain. While the attack, decay, and release controls are rate or time controls, the sustain control is a level control.
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Retain (verb)
To keep in possession or use.
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Retain (verb)
To keep in one’s pay or service.
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Retain (verb)
To employ by paying a retainer.
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Retain (verb)
To hold secure.
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Retain (verb)
To restrain; to prevent.
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Retain (verb)
To belong; to pertain.
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Sustain (verb)
To maintain, or keep in existence.
“The professor had trouble sustaining students’ interest until the end of her lectures.”
“The city came under sustained attack by enemy forces.”
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Sustain (verb)
To provide for or nourish.
“provisions to sustain an army”
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Sustain (verb)
To encourage (something). en
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Sustain (verb)
To experience or suffer (an injury, etc.).
“The building sustained major damage in the earthquake.”
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Sustain (verb)
To confirm, prove, or corroborate; to uphold.
“to sustain a charge, an accusation, or a proposition”
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Sustain (verb)
To keep from falling; to bear; to uphold; to support.
“A foundation sustains the superstructure; an animal sustains a load; a rope sustains a weight.”
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Sustain (verb)
To aid, comfort, or relieve; to vindicate.
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Sustain (noun)
A mechanism which can be used to hold a note, as the right pedal on a piano.
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Sustain (verb)
strengthen or support physically or mentally
“this thought had sustained him throughout the years”
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Sustain (verb)
bear (the weight of an object) without breaking or falling
“his health will no longer enable him to sustain the heavy burdens of office”
“he sagged against her so that she could barely sustain his weight”
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Sustain (verb)
undergo or suffer (something unpleasant, especially an injury)
“he sustained severe head injuries”
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Sustain (verb)
cause to continue for an extended period or without interruption
“he cannot sustain a normal conversation”
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Sustain (verb)
(of a performer) represent (a part or character) convincingly
“he sustained the role of Creon with burly resilience”
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Sustain (verb)
uphold, affirm, or confirm the justice or validity of
“the allegations of discrimination were sustained”
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Sustain (noun)
an effect or facility on a keyboard or electronic instrument whereby a note can be sustained after the key is released.