Clarifying reverberation for organ performance

Abstract

In the conceptual phase of design or remodeling of a space for organ performance, the acoustical consultant will have a limited time in which to assess the potential for reverberation and to guide the designer in maximizing this potential. In a place of worship, the organ is likely to serve as an accompaniment to the choir and also as a solo performance instrument, both of which have their distinct acoustical requirements. It is important for the designer to fully understand the intended uses of the organ and the qualities that the organ builder wishes to emphasize. While attaining sufficient reverberation for organ performance is often a challenging task, too much reverberation, which can blur form, harmonic structure, rhythm articulation, and dynamic contrasts, must also be avoided. The architectural factors to be considered in this careful balance are reviewed together with examples of successful organ installations.