midicnTheory 中文

Tempo is "how many beats per minute". It is written two ways, and their reliability differs sharply:

NotationExampleReliability
numeric marking♩ = 96precise: 96 quarter notes per minute
termAllegroapproximate: a "feeling range"

The terms and their rough ranges

TermMeaningRough BPM (quarter)Feeling
Largobroad40–60very slow, spacious
Adagioslow60–76slow, unhurried
Andantewalking76–108the speed of a walk
Moderatomoderate108–120medium
Allegrofast120–168bright
Prestovery fast168–200rushing

Treat those ranges as rough, for the reason below.

The part worth its own paragraph: terms change speed with the era

This is the most valuable point in the entry. A conclusion established by historical performance research:

The same term may have been played at very different speeds in different eras.

Specifically: a Baroque Adagio was far slower than a nineteenth-century one (notation habits, instrument construction and playing traditions all differed), and Romantic composers writing Allegro were often played faster than we assume today. That is why performers in the historical-performance movement reconstruct tempo from period treatises, instruments and notational conventions (see historical performance).

So a term is not a precise instruction but a description of "relative speed plus character": it says more about what the passage should feel like than about milliseconds per beat.

How tempo changes character

This is tempo's most useful property — and it is a variable independent of rhythmic pattern:

Same patternSlowMediumFast
dotted long-short alternationlament, solemnitymarchingtense, pursuing
four even quartersbroodingsteadymechanical, urgent

Change the tempo of one pattern and you change its character — which shows tempo is not a "technical parameter" but an independent expressive dimension. (It is also why the metronome deserves its own entry: it turned speed from a feeling into a number.)

Diagram: a term is a range, a number is a point

A term is a range; a numeric marking is a point 4080120 160200 Largo Adagio Andante Allegro Presto numeric marking, quarter = 96: a point A term states character, a number states frequency — one is a range, the other a point The same term may have meant very different speeds in different eras (a Baroque Adagio was far slower) So a term is not a precise instruction but "relative speed plus character"

Listen: one pattern at three speeds

Use rhythm to hear the same pattern at 60, 96 and 150. The notes are identical; the impression is not — direct evidence that tempo is an independent expressive dimension.

Common misconceptions

Listen in the library

Suite bergamasque: III. Clair de luneC14:36Debussy's Clair de lune — sustained slowness and free breathing are part of its image; the tempo is doing the depictingDetailsChromatic Fantasia and Fugue in D Minor, BWV 903C111:25Bach's Chromatic Fantasia and Fugue — the fantasia's tempo shifts are extreme, a classic case of tempo as expressionDetailsScales, Arpeggios, and CadencesC13:22Scale and cadence exercises move at a fixed moderate speed, the baseline against which tempo changes are feltDetails

All tracks from midicn-lib — inline badge is the license tier (C1 commercial / C2 non-commercial / C3 study only).

Sources

  • 速度术语的意大利语体系(largo / adagio / andante / moderato / allegro / presto)及其大致速度区间,属乐理通则
  • 节拍器数字标记由梅尔策尔于 19 世纪初推广;术语的实际速度随时代变化,为音乐史与历史演奏法通行研究结论

Used for fact-checking only; all prose is original.