Music theory is the study of the practices and possibilities of music.
"The term is used in three main ways in music, though all three are interrelated. The first is what is otherwise called 'rudiments', currently taught as the elements of notation, of key signatures, of time signatures, of rhythmic notation, and so on. Theory in this sense is treated as the necessary preliminary to the study of harmony, counterpoint, and form. The second is the study of writings about music from ancient times onwards. The third is an area of current musicological study that seeks to define processes and general principles in music — a sphere of research that can be distinguished from analysis in that it takes as its starting-point not the individual work or performance but the fundamental materials from which it is built." Wikipedia, Music Theory
See Also
01 - The origin of a Musical Sound
04 - On the Pitch of Musical Sounds
06 - On the Intensity or Loudness of Musical Sounds
Fibonacci is Music
Figure 1.12 - Naturally Occurring Frequencies Modes and Music Interval Relations
Figure 13.15 - Equilibrium as Musical Tonal Equivalents
Figure 14.01 - Overtones Developed Musically Showing Up as Isotopes along the Vertical Axis of this Chart
Figure 4.17 - Musical Relationships of Colors Tones and Attributes
HOW THE MUSICAL SPHERE ROTATES
Kepler Music of the Spheres
Kepler Music Theory
Kepler Theory of Harmony
Laws of Music
music
Music
music note or sound colors
Music of the Spheres
MUSICAL CHORDS
Musical Dynasphere
musical globe
musical scale
musical sphere
Musical Triplet
Part 26 - Science of Sound Vibration Acoustics and Music
Periodic Table Set to Music
PHILOSOPHY OF TRANSMISSION AND ROTATION OF MUSICAL SPHERE
Principles of Acoustics
Symmetry in Music
Sympathetic Vibration Theory
THEORY OF THE INDUCTION OF SYMPATHETIC CHORDS TO EXCITE ROTATION BY VIBROPHONIC TRAJECTION TO AND FROM CENTERS OF NEUTRALITY ON REVOLVING GLOBE
1.21 - It Really Is a Musical Universe
11.04 - Nature Dances to a Natural Music Scale
19.02 - Theory of the Induction of Sympathetic Chords to Excite Rotation