midicnAudio & Music Production 中文

Exporting MIDI from a Score

Exporting a score to MIDI turns durations, dynamics and expression into discrete events.

A score carries signs; MIDI carries time, pitch and velocity. Export folds continuous expression into discrete events.

The problem

Composers write crescendos, fermatas and rubato, but playback offers fixed beats and a limited set of velocity levels. Different export settings turn one score into very different MIDI.

How it works

Each note becomes Note On and Note Off, with duration in ticks. Tempo marks become tempo events; dynamics map to velocity; legato, pedals and trills become controller data. Grace notes receive very short durations, trills may be written out, and repeats may export once. Quantisation snaps small timing offsets to the grid.

Practice and judgement

Before export, decide whether repeats unfold, whether the tempo curve is written and how grace notes divide time. In the DAW, check the first attack, truncated tails and chord alignment. Keep the original performance take when feel matters.

What to listen for

Hear whether chords arrive together, whether long notes are cut and whether a crescendo becomes a staircase. Then hear a rubato passage and ask whether any breath remains.

Common misunderstandings

MIDI keeps every mark; the right sound equals a faithful rendering; finer quantisation is more faithful. The opposite is common, because finer grids flatten phrasing.

Listen in the library

Lyric Pieces, Book 5, Op. 54: No. 4, NocturneC14:09自由速度的夜曲,导出后最能听出量化抹掉了多少呼吸DetailsChorale BWV 1/6C11:02四声部众赞歌节拍规整,适合检查和弦是否被导齐Detailselegy for the summer of 4096C14:15配乐中间有速度变化,可对照速度事件是否写进文件Details15 Three-part Inventions, BWV 787/801: No. 10 in G, BWV 796C11:10三声部创意曲的连奏与断奏,导出后容易变成同一种音头Details

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

Sources

  • MIDI 1.0 规范中音符、速度与控制器消息的定义,依 MMA 公开规范核查,未抄文本
  • 制谱软件导出 MIDI 的反复、装饰音与力度选项,依公开文档核查,未抄文本

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