The objective is to examine the use of sound and music in sacred spaces through the lenses of architecture, acoustics, ritual, and social participation; to enable students to evaluate the relationships between spatial characteristics and the practices of religious performance and listening; and to develop skills in conducting research based on observation, primary sources, and recordings by comparing examples from different historical periods and faith traditions.

The concepts of sacred space, soundscape, auditory experience, and acoustic heritage are explored, alongside fundamental principles concerning the propagation, reflection, and absorption of sound, as well as reverberation and speech intelligibility. Through selected examples—including temples, synagogues, churches, mosques, *tekkes* (dervish lodges), and open-air sacred sites—the study examines the relationships between architectural layout, the positioning of performers and listeners, the use of the human voice and musical instruments, and ritual movements. The relationship between space and various forms of religious expression—such as mosque music, Quranic recitation, and collective religious performances—is analyzed, alongside the impact of sound reinforcement systems, recording technologies, and evolving listening habits. Furthermore, the research addresses the possibilities and limitations of utilizing sources, observations, measurements, and modeling data in the study of historical soundscapes, while also considering research ethics and the preservation of acoustic heritage.