[Retracted] Extraction of Music Main Melody and Multi-Pitch Estimation Method Based on Support Vector Machine in Big Data Environment

Table 1

Interval relationship between harmonic frequency and fundamental frequency.

Harmonic frequency	Frequency	Interval
2	2f0	Pure octave
3	3f0	Pure octave + pure fifth degree
4	4f0	Two octaves
5	5f0	Two octaves + major third
6	6f0	Two octaves + pure five degrees
7	7f0	Two octaves + pure seven degrees