Undoubtedly, architecture and music are two arts that are closely related to each other in terms of the emotional and mental function of man. We could classify them as spatial and temporal art respectively. Articulation, harmony, color, composition, structure, contrast, repetition, scale, etc. form a common horizon for both arts. This present research work studied the way music and architecture is composed on paper and the mental process that presupposes in both cases by the composer, whether he is an architect or a musician. How sound is produced from a musical score and how the spatial experience is born from the floor plan. These two results may eventually have a common imprint on the human condition.