amads.pitch.ivdist2#

Provides the ivdist2 function

amads.pitch.ivdist2.ivdist2(score, weighted=True) → list[list[float]][source]#

Returns the 2nd-order interval distribution of a musical score.

Currently, intervals greater than an octave will be ignored.

Args:

score (Score): The musical score to analyze weighted (bool, optional): If True, the interval distribution is

weighted by note durations (default True)

Returns:

list[list[float]]: A 25x25 matrix where (i,j) represents the normalized: probabilities of transitioning from interval i to interval j. Refer to the documentation for ivdist1 for the index of each interval. If the score is empty, the function returns a matrix with all elements set to zero.

Raises:

Exception: If the score is not monophonic (e.g. contains chords)

amads.pitch.ivdist2.update_id(id, notes, weighted)[source]#

Updates the interval distribution list based on the given notes.

Serves as a helper function for ivdist2

Args:: id (list[list[float]]): The interval distribution list to be updated. notes (list[Note]): The list of notes to process. weighted (bool): If True, the interval distribution is weighted

by note durations.

Parameters:

amads.pitch.ivdist2