Explore Notation & Symbols with clear music dictionary guides to clefs, notes, rests, accidentals, repeats, and score markings.
A half note, also called a minim, is a musical note value lasting two beats in common time. It is written as an open (hollow) notehead with a stem and is a fundamental unit of rhythm in Western notation.
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.
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.
The forte symbol ( f ) is a dynamic marking that directs performers to play a passage loudly, typically at a strong, full‑volume level. It is one of the most common expressive indicators in Western music notation.
A note stem is the vertical line attached to a notehead that, together with flags or beams, indicates the note’s rhythmic value and orientation on the staff.
A key signature is a set of sharps or flats placed at the beginning of a staff to indicate the scale on which a piece is based. It defines which notes are to be played consistently sharp or flat throughout a composition unless cancelled by accidentals.
A piano reduction is a condensed version of a larger orchestral, operatic, or ensemble work arranged for piano, used for study, rehearsal, and performance. It captures the essential harmonic, melodic, and rhythmic elements while omitting many individual instrumental lines.
An accidental is a symbol placed before a note to raise or lower its pitch by a semitone or whole tone, temporarily altering the key signature. Sharps, flats, naturals, double sharps, and double flats are the most common accidentals used in Western staff notation.
A flag is the curved line attached to a note stem that indicates a duration shorter than a quarter note. Flags appear on eighth notes, sixteenth notes, and smaller values, and their number determines the exact rhythmic length.
A caesura is a musical notation indicating a brief, complete pause or interruption in the flow of sound, often written as // and interpreted as a moment of silence at the performer’s discretion.