Module tuningsystem

Expand description

Tuning-system ratios, labels and frequency helpers.

Structs§

A0: Frequency of A0 in hertz.
A4: Frequency of A4 in hertz.
ALL_TUNING_SYSTEMS: All built-in tuning systems in canonical display order.
AN1: Frequency of A-1 in hertz.
C0: Frequency of C0 in hertz.
C4: Frequency of middle C in hertz.
CN1: Frequency of C-1 in hertz.
COMMON_TWELVE_TONE_TUNING_SYSTEMS: The common twelve-tone tuning systems useful for comparing pitch frequencies.
ELEVEN_LIMIT: Twenty-nine-tone eleven-limit tuning ratios.
FIVE_LIMIT: Twelve-tone five-limit tuning ratios.
FORTYTHREE_TONE: Backwards-compatible alias for FORTY_THREE_TONE.
FORTY_THREE_TONE: Forty-three-tone tuning ratios.
INDIAN_SCALE: Seven-tone Indian scale ratios.
INDIAN_SCALE_22: Twenty-two-tone Indian scale ratios.
INDIAN_SCALE_NAMES: Degree labels for the seven-tone Indian scale.
INDIA_SCALE_ALT: Alternate seven-tone Indian scale ratios.
JAVANESE: Five-tone Javanese equal-temperament approximation.
JUST_INTONATION: Twelve-tone just intonation ratios.
JUST_INTONATION_24: Twenty-four-tone just intonation ratios.
OCTAVE_SIZE: Default octave size for twelve-tone systems.
PYTHAGOREAN_TUNING: Twelve-tone Pythagorean tuning ratios.
THAI: Seven-tone Thai equal-temperament approximation.
TWELVE_TONE_NAMES: Degree labels for a twelve-tone chromatic octave.
WHOLE_TONE_NAMES: Degree labels for a whole-tone octave.

equal_temperament: Creates an equal-temperament fraction for tone within octave_size.
equal_temperament_12: Creates a twelve-tone equal-temperament fraction.
equal_temperament_default: Creates an equal-temperament fraction using OCTAVE_SIZE.
get_cents: Returns cents offset from equal temperament for a tuning-system degree.
get_cents_at: Returns cents offset from equal temperament for a fractional degree index.
get_fraction: Returns the fraction for a tuning-system degree.
get_frequency: Returns the frequency in hertz for a tuning-system degree.
get_frequency_at: Returns the frequency in hertz for a fractional tuning-system degree.
get_label: Returns a display label for a tuning-system degree.
get_ratio: Returns the frequency ratio for a tuning-system degree.