System and method for analysis and creation of music

A system for analyzing notes of one or more musical piece inputs, the system comprising:

• a processor;
• and
• a memory having executable instructions stored thereon that when executed by the processor cause the processor to:
• generate a set of note pitches from the one or more musical piece inputs that matches an interval pattern;
• detect a plurality of pitches that lie outside of the interval pattern;
• analyze the plurality of pitches to detect key modulations;
• identify a plurality of possible key sequence bifurcations according to the analysis;
• generate 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;
• detect a chord sequence with a given amount of repetition to choose a finalized key sequence;
• generate an additional finalized chord sequence based on the finalized key sequence by detecting essential and inessential note fragments based on the fitness function;
• and
• identify one or more non-harmony pitches according to the finalized chord sequence.