When designing an outdoor space for alchemical acoustics, the choice of furniture plays a crucial role in sound optimization. Materials like teak, cedar, or wrought iron are ideal due to their density and ability to reflect or absorb sound waves effectively. For a harmonious acoustic environment, consider curved or modular furniture designs that diffuse sound naturally. Adding cushions or upholstery made from acoustic fabrics can further enhance sound quality. Pairing these elements with strategic placement—such as near water features or wind chimes—creates a serene, alchemically balanced outdoor retreat. Experiment with textures and layouts to achieve the perfect auditory ambiance.