The relationship between music and architecture, discussed in occidental culture for thousands of years. A brief look at music and architecture theory shows, this relationship was not always described in the same way. And so were this two arts already inseparable partners united in love, distant cousins or closely related sisters - mutually reliant on one another, or unequally dependent from each other. The study of the parallels between music and architecture raises many and more questions. How to perceive a connection between music and architecture today and how this came about? What influence does music have on the design process and whats the way to recognize it? Why to talk about music at all in an architecture project? And then, so what music? Is there a sort of logical connection or probably a particular music may be selected? And if, what are the criteria to take into account? What if music was composed for an architectural task, anyway, is that even possible? May this music also provide the answers of architectural questions? And if so, what could be a practicable way to interpret that answers? How to understand music in this context? Pragmatic or ideological? Formal, graphical, geometric or as a kind of abstraction? How is sound, mood, harmony, melody linked to materiality, form language and function? What are the parallels between music and architecture? The work addresses these and other questions by examining the influence of music on the design process both in theory and practice.