The Harmonic Series is what happens when you multiply a number by every integer into infinity. (1x1, 1x2, 1x3, etc.) When you reproduce it in frequency, it produces the major chord that serves as the basis of Western music. It also produces a bunch of other higher notes that aren't as closely related to our twelve musical notes.

Unless you listen to microtonal music or the traditional music of various non-Western cultures, the music you listen to is written in equal-temperament. In this tuning system, each of the notes that you perceive as being in tune are actually out of tune in various degrees so that all 12 keys will be equally in (or out of) tune. Each note on an instrument produces harmonics, but the notes themselves are detuned from the series to produce 12 equal divisions of the octave.

The music presented here is written with the tones of the Harmonic series which, unlike the equally-spaced tones of the equal tempered system, become more numerous and create smaller divisions of the octave as frequency rises. The series divides the octave into 2, 4, 8, 16,  32, etc.

To the Pythagoreans, the study of harmonics was one of the four most important sciences; the study of arithmetic in time. It mirrored the motion of the heavenly bodies. This music is a more accurate representation of the mathematical and acoustical structure of the universe, written scientifically and with great affection for the incredible statements made in equal temperament, replicated as accurately as moderately-priced modern technology will allow.

What Music Really İs represents the independent research on the true nature of sound, harmony and ultimately music. 

The topics and theories covered by this visionary research, free from inherited dogmatic concepts include: 
* breakthrough sonic technologies, 
* true harmonic resonance, 
* organic music, 
* ancient psychoacoustic practices, 
* brainwave entrainment, 
* the science behind sound healing and music therapy, 
* the ascending and descending harmonic series and the self-organizing matrix of overtones and undertones, 
* just intonation, 
* isomorphic musical instruments, 
* intuitive notation systems, 
* the truth behind concepts like "The Ancient Solfeggio Frequencies", "528 Love" or "Tuning to 432 Hz" and "RA Music Natural Standard of 424 Hz".

What Music Really İs is following