ORIGIN AND NATURE OF MINOR 193 



not appear, as it is for the presence of the newly 

 generated tone si. As regards si, which arose as a 

 concomitant in the harmonic thread generated hjti5, 

 we pause here to observe first, that chromatics first 

 arose as concomitants and were generated by diatonics 

 in transmuted or new relations; next, that all newly 

 generated tones like si pass through three consecu- 

 tive stages of psychological evolution which mark the 

 progressive development of melody. Indeed, with 

 the exception of the components of one harmony, all 

 tones have passed through these three evolutionary 

 stages. The one exception is the major Tonic-har- 

 mony which was at once a regnant harmony and the 

 first harmony generated by melody and whose com- 

 ponents do 1, mi 3, sol 5 therefore made their first 

 appearance in melody as regnant tones. The three 

 consecutive psychological stages are as follows: — 



First Stage : in which a tone had its genesis as an 

 elementary harmonic or concomitant in a thread of 

 harmony generated by a previously existing tone in a 

 new relation. This is a tone's lowest or elementary 

 stage. 



Second Stage : in which a tone has been differen- 

 tiated and has appeared in melody as a bytone, that 

 is, in the relation of cadence on a light rhythm-period. 

 In this stage a tone has become an individual con- 

 stituent of melody and of the tone-system. This 

 stage may be called briefly the bytone stage. 



Third Stage : in which a tone has appeared in 

 melody as a regnant tone. In this stage a tone first 

 appears on light rhythm-periods after or between 

 other co-harmonics of the regnant harmony, but does 



