Known as ``Melody Extraction'', ``Audio Melody Extraction'', ``Predominant Melody Extraction'', ``Predominant Melody Estimation'' or 'Predominant Fundamental Frequency Estimation'', the task involves automatically obtaining a sequence of frequency values representing the pitch of the dominant melodic line from recorded music audio signals (see Fig. The extraction of melody from polyphonic music signals is one such technology which has received substantial attention from the audio signal processing and music information retrieval (MIR) research communities. The advances in research on audio content processing in the last decade have led to technologies that help the user interact with music by directly analyzing the musical content of audio files. Given these vast numbers of songs, we now require novel ways of describing, indexing, searching and interacting with music. Music has been completely restructured by digital technology, starting with the compact disc, and leading to today's situation where consumers may have access to thousands of tracks stored locally on their smartphone or music player, and millions of tracks instantly available through cloud-based music services.

Definition malody