Expand description
The features music21 adds of its own: music21’s features.native. Each
is an Extractor in NATIVE, found by its id with extractor.
The key features read the keys the piece states or, failing those, the
key it is analysed to be in; the quarter-length features (QL) read how
long its notes are; the simultaneity features (CS) read the chords of
the piece chordified, and its chord symbols; the Landini cadence (MC1)
reads how each part’s melody ends. music21’s habits are kept where they
decide a value: the most common length is the last of those equally
common, and a chord symbol that sounds nothing refuses the bass-motion
feature, as music21 finds no bass in it.
music21’s language feature (TX1) reads the lyrics against texts in
seven languages, about 1.9 MB of them, so it is here only with the
language-detection feature.
Constants§
- NATIVE
- Every native extractor music21 lists, in music21’s order: its language
feature last, and only with the
language-detectionfeature.
Functions§
- extractor
- The native extractor with this id, such as
QL1orCS12.