This book contains my works published in the period 2005-2013 on my website (also in arXiv). The concept of "harmony" in the title refers to the determination of the genetic code by golden mean, generalized golden mean and harmonic mean. Some parts of the contents, in the meantime are published in some of the official journals, but most are not, and this was the reason for my decision to publish all papers here in their entirety. [The work, which here is given as the third chapter, previously is published in the Proceedings of the Montenegrin Academy of Sciences, together with academician Zvonimir Damjanović.] The book's motto shows best in what is the difference between my insights (into the essence of the genetic code) in relation to the insights determined by the paradigm in the current science. [Now, 2017.12.09, I store this Proceedings of my works in OSF Preprints for the purpose of wider availability to the scientific public.]