Module theory 

音名、音阶、和弦、调式目录和移调工具。

Functions

chord

Generates a chord using tunes chord patterns.

chord_kind_names

Returns all Lua-visible chord kind names.

mode_names

Returns all Lua-visible scale and mode names.

parse_note_frequency

Parses a note name like C4, C#4, or Db4 into a frequency in Hertz.

scale

Generates a scale using tunes scale patterns.

transpose_frequency

Transposes one frequency by semitones.

transpose_notes

Transposes a sequence of frequencies by semitones.