System and method for analysis and creation of music

摘要

A method and system for analyzing patterns in the relationships of notes of an input piece of music. The method comprises generating a set of the most frequently occurring note pitches in ascending pitch order that matches an interval pattern, and detecting out-of-key pitches that lie outside of this interval pattern. One or more potential key sequence bifurcations are identified which represent a list of possible key sequences according to forwards and backwards analysis. By finding patterns of repetition in the chordal sequences that may be generated according to these key sequence bifurcations, a key sequence that allows the most frequently recurring chord sequences may be chosen. Chord sequences may be analyzed by using ghost chords, temporary harmonic structures that are created, updated and finalized over time according to a combination of essential and inessential note fragments. The method further comprises identifying non-harmony pitches according to the analyzed chord sequence.

主权项

1. A method for analyzing notes of one or more musical piece inputs, the method comprising:
generating a set of most frequently occurring note pitches from the one or more musical piece inputs in ascending pitch order that matches an interval pattern; detecting a plurality of pitches that lie outside of the interval pattern; analyzing the plurality of pitches to detect key modulations by forwards and backwards analysis; identifying a plurality of possible key sequence bifurcations according to the forwards and backwards analysis; generating a plurality of possible key sequences from the plurality of possible key sequence bifurcations by detecting essential and inessential note fragments based on a fitness function; detecting a chord sequence with greatest repetition to choose a finalized key sequence; generating an additional finalized chord sequence based on the finalized key sequence by detecting essential and inessential note fragments based on the fitness function; and identifying one or more non-harmony pitches according to the finalized chord sequence.