The phrase "principle of harmony" is correct and is commonly used in written English.
It refers to the idea or rule that states things should be in agreement or balance with one another. Example: The principle of harmony is essential in creating a successful team where everyone's strengths and weaknesses complement each other. Another example: The architect followed the principle of harmony in designing the building, ensuring that the different elements blended together seamlessly.
On the principle of harmony with difference, all will peacefully coexist and have opportunities for free development.
Specifically, we empirically test the relationships between the aesthetic principle of harmony and cognitive appraisals (attentional activity and pleasantness), while exploring the moderating role of typicality.
Coltrane would often discard the principle of harmony in order to produce a trancelike effect on his audience; his later compositions recall the scalar complexity of North Indian classical music more than anything in the Western tradition.
The fruits of that contemplation are the discovery, or the invention of some small principle of harmony and order that may be isolated from that disorder which obscures it, and the subjection of that discovery those poetic laws which at last make it possible...
The relationship between introduction and elimination rules is often described as "harmony", or as governed by a "principle of harmony" (see, e.g. Tennant, 1978, p. 74).
Nonetheless, from the Demonstration of the principle of harmony (1750) on, and after the so-called "Quarrel of Buffoons", where Rousseau took him to task (in his Letter about French Music 1753, a libel in favor of the Italian opera), Rameau retreated to the certainty that music is the universal "key" to any subject whatsoever, including geometry.
"It symbolizes aesthetic simplicity and represents the fundamental Zen principles of harmony, respect, purity and tranquillity".
The principles of harmony and contrast of colours / M. E. Chevreul.
The principles of harmony and contrast of colors and their applications to the arts.
The principles of harmony and contrast of colors and their applications to the arts / by M.E.
The principles of harmony and contrast of colours, and their applications to the arts... / by M.E.
