musical notation Music notation or musical notation is any system used to visually represent aurally perceived music played with instruments or sung by the human voice through the use of written, printed, or otherwise-produced symbols, including notation f ...

, stems are the, "thin, vertical lines that are directly connected to the otehead." Stems may point up or down. Different-pointing stems indicate the

voice The human voice consists of sound made by a human being using the vocal tract, including talking, singing, laughing, crying, screaming, shouting, humming or yelling. The human voice frequency is specifically a part of human sound producti ...

for

polyphonic Polyphony ( ) is a type of musical texture consisting of two or more simultaneous lines of independent melody, as opposed to a musical texture with just one voice, monophony, or a texture with one dominant melodic voice accompanied by chords, ...

music written on the same

staff Staff may refer to: Pole * Staff, a weapon used in stick-fighting ** Quarterstaff, a European pole weapon * Staff of office, a pole that indicates a position * Staff (railway signalling), a token authorizing a locomotive driver to use a particula ...

. Within one voice, the stems usually point down for notes on the middle line or higher, and up for those below. If the stem points up from a notehead, the stem originates from the right-hand side of the note, but if it points down, it originates from the left. If there are multiple notes beamed together, the stem's direction is defined by the average of the lowest and highest notes in the beam. There is an exception to this rule: if a chord contains a

second The second (symbol: s) is the unit of time in the International System of Units (SI), historically defined as of a day – this factor derived from the division of the day first into 24 hours, then to 60 minutes and finally to 60 seconds ea ...

, the stem runs between the two notes with the higher being placed on the right of the stem and the lower on the left. If the chord contains an odd numbered cluster of notes a second apart (such as C, D, E), the outer two will be on the correct side of the stem, while the middle note will be on the wrong side. The length of a stem should be that of an octave on the staff, going to either an octave higher or lower than the notehead, depending on which way the stem is pointing. If a note head is on a

ledger line A ledger line or leger line is used in Western musical notation to notate pitches above or below the lines and spaces of the regular musical staff. A line slightly longer than the note head is drawn parallel to the staff, above or below, spaced ...

more than an octave away from the middle line of a staff, the stem will be elongated to touch the middle line. In any polyphonic music in which two parts are written on the same staff, stems are typically shortened to keep the music visually centered upon the staff. Music-tremolo

Stems may be altered in various ways to alter the rhythm or other method of performance. For example, a note with diagonal slashes through its stem is played

tremolo In music, ''tremolo'' (), or ''tremolando'' (), is a trembling effect. There are two types of tremolo. The first is a rapid reiteration: * Of a single note, particularly used on bowed string instruments, by rapidly moving the bow back and f ...

References

{{DEFAULTSORT:Stem (Music) Musical notation

See also

References