Key (music)

In music, a key designates a group of pitches, chords, and related harmonic relationships centered on a tonic note. It provides the tonal framework for a piece, influencing its mood, structure, and melodic direction.

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Alto clef

The alto clef is a C clef positioned on the middle line of the staff, indicating that the note C lies on that line. It is most commonly used for viola notation and occasionally for other alto-range instruments.

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Double Bar Line

A double bar line is a pair of vertical lines placed together on a musical staff to mark the end of a section, a change of key, or the conclusion of a piece. It functions as a visual cue for performers to recognize structural boundaries within the score.

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English horn

The English horn, also known as the cor anglais, is a double‑reed woodwind instrument pitched a perfect fifth below the oboe. It is distinguished by its mellow, plaintive tone and is a staple of the Romantic and contemporary orchestral repertoire.

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Pitch correction

Pitch correction is a digital audio process that adjusts the pitch of recorded sounds to match intended musical notes. It is widely used in vocal production, instrumental editing, and live performance to improve intonation or create stylistic effects.

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Grave (tempo)

Grave is a tempo marking indicating a very slow and solemn pace, typically ranging from 25 to 45 beats per minute. It is used primarily in classical and early‑romantic repertoire to convey profound seriousness or gravitas.

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