Aerodynamic sound generated by bluff bodies is closely linked to the formation and spatial organisation of coherent structures in their wakes. Despite the apparent simplicity of these canonical configurations, the mechanisms connecting turbulent flow dynamics to far-field acoustic radiation remain strongly influenced by geometry and three-dimensional flow organisation. In this seminar, I will present an experimental and modelling investigation combining time-resolved particle image velocimetry (TR-PIV), microphone measurements and global stability analysis. The measurements characterise vortex shedding and spanwise coherence for different bluff-body geometries, while stability analysis about the mean flow provides a physical interpretation of the dominant coherent structures. Their connection to far-field sound is subsequently examined using aeroacoustic modelling. Finally, I will discuss how these approaches may be extended beyond bluff-body wakes to broader classes of turbulent and separated flows, with perspectives involving resolvent analysis, reduced-order modelling and improved mean-flow representations for instability and sound prediction.