Arachnid Orchestra. Jam Sessions, Cosmic Jive: The Spider Sessions and the Cosmic Dust Web Orchestra are pioneering and visionary projects by artist Tomás Saraceno that fold his long-term research on spider webs into the realm of vibration and sound, to develop playful and experimental systems for interspecies communication. Working at the intersection of art, architecture and science, for these projects Saraceno transformed spider webs into musical instruments that play upon the incredible structural and mechanical properties of spider silk, and also tune into the spider’s sophisticated forms of vibrational communication. Exhibited at Saraceno’s first solo show in SE-Asia at the NTU Centre for Contemporary Art in Singapore, Arachnid Orchestra. Jam Sessions was developed in collaboration with experts from various fields of knowledge—and extends upon Saraceno’s earlier bioacoustic projects. With this interdisciplinary team, Saraceno created a musical system for translating the spiders’ vibrations into acoustic rhythms: amplifying the spiders’ biotremological signals and web pluckings, and making these substrate-borne vibrations audible to humans. During the exhibition, musicians and sonic artists were invited to attune and respond to the spiders’ vibrational signals through the multispecies instruments that Saraceno created via three live performances (jam sessions), creating a collective and immersive interspecific orchestral composition. The exhibition space was thus transformed into an interactive sound and visual installation: a process-driven laboratory for experimentation that pushed the boundaries of interspecies communication. During the First International Symposium on Biotremology in San Michele all’Adige, sonic excerpts from Arachnid Orchestra. Jam Sessions were played to a scientific audience.