Is it possible to figure out the chords of a song or tune using set theory?

set theory refers to C as 0, C# as 1,D as 2, D# as 3, E as 4, F as 5, F# as 6, G as 7, G# as 8, A as 9, A# as 10 and B as11. For instance C Major will be represented as (0,4,7).

Is it possible to figure out the chords of a song or tune using set theory?
Did you invent this? Using the pre-existing traditional approach to theory the chords (harmonic progression)every popular song in the western world can "figured out." If you are in C, or any major key, the chords are: I, ii,iii,IV,V, vi,vii°. Western music has twelve tones, as your system displays, but the tones begin with 1 and end with 12, not 0 ending with eleven. Your ssystem is similar to Hanson harmonic analisys (n,S,M,P if I recall) and also has bits of the Baroque era "figured" bass in which musicians were expected to know the voicings of chord( which notes are on bottom, in middle and on top) by reading a bass line which was adorned by numerals( 2,3,4,6,7).





Of course a theoretical element you didn't mention is the ear. It is necesarry to have adequate ear training. Ear training is the ability to recognize notes, and more importantly recognize intervals. An interval is the distance between notes: prime(the same note) minor and major seconds,minor and major thirds,perfect fourth,augmented fourth/diminished fifth/tritone,perfect fifth,minor and major sixth,minor and major seventh,octave, etc. This is necesarry for recognizing what the melodic and harmonic movements of a song or piece are.





In conclusion: Yes we use theory to figure out the chord progression of a song, but before you use any system of notation it is of utmost importance to understand the intervals.
Reply:I studied Music and I really don't know what are you talking about. What is 10 12 11 means????