What does up-bow and down-bow mean in music?

Bowing & articulation

Up-bow and down-bow

Also: bowing marks, bow direction

Down-bow moves the bow from frog to tip and is marked with a bracket symbol; up-bow moves from tip to frog and is marked with a V.

The two directions are not equivalent. A down-bow starts with the heavier frog end and the arm's natural weight, so it is stronger and suits accented notes and downbeats, hence the old rule of thumb that a strong beat takes a down-bow. An up-bow arrives at the frog gathering weight, so it naturally shapes a crescendo and suits upbeats and pickups.

In an orchestra, bowings are not left to individuals: the section leader marks the part and everyone matches, because a section bowing in different directions produces visibly and audibly uneven attacks. Learning to read and follow marked bowings is a core ensemble skill, and rewriting them to make a phrase work is a core solo one.

Détaché: Détaché is the basic string bowing in which each note gets its own bow stroke, changing direction between notes while the bow stays on the string.
Bow hold: The bow hold is the way the right hand contacts the bow, a flexible, curved grip that lets the fingers absorb pressure changes rather than locking them out.
Articulation: Articulation is how a note is started, sustained, and released, the markings that distinguish smooth, separated, accented, and shortened notes from one another.
Divisi: Divisi instructs a string section to split into two or more groups playing different notes, rather than every player attempting the written chord alone.

Every term in this glossary is taught in context somewhere in Arco's curricula, on the staff, on the keyboard, and on your own fingerboard at the same time.

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