Double-stop
Two strings sounded together — intonation and bow balance exposed
Related
A double-stop sounds two strings at once: the left hand stops a note on each string and the bow contacts both, producing two pitches together. The interval may be consonant — a third, sixth or octave — or tense, like a second or seventh that rubs; when three or four strings sound, it is usually written as a chord and played as a quick roll.
The texture thickens, and so do the problems: intonation is now a relationship between two notes, and the bow must keep even contact and pressure across both strings or one will fade. The usual mistake is to call two notes played one after another a double-stop — the point is simultaneity; on the guitar it means plucking two strings together, while on the piano one speaks of double notes or octaves, not double-stops.
Sources
- double-stop 的奏法与常见难点，参 The New Grove Dictionary of Music and Musicians, "Double stop"；本文为原创表述
Used for fact-checking only; all prose is original.