Abstract In the speculative research of plant bioacoustics, one enters into a sonic intra-active relation, by humans with non-human beings (plant life), activated through acoustic wave signals emitted by plants to create electronic patterns of sounds composed by humans and emitted by machines. Plants emit sound waves at relatively low frequencies of 50–120 Hz. Experimenting with patching and modulation by tracking these sonic lines of data can indeed lead to unique sonic experiences that tap into the universe’s musicology. It is fascinating how we can interact with sounds on such a deep level to create acoustic energy. We are and have always been attached to the universe in a relational processual way. We are all interconnected with plant life vibrating at different internal frequencies. This article focuses on a symbiotic relation between humans and plant life as an acoustic shimmering ecology – to communicate a posthuman, symbiotic understanding of vegetal matter as a morphological force that (re)shapes, (re)affirms our sonic intra-relations to the natural world. This proposition is molecular and metaphysical, as sound matter is of a qualitative multiplicity in the quantum field of listening. By acknowledging ontologically that cosmopolitics brings into relation different practices, practitioners, and the non-human (they assemble in a field of forces and intensities), I argue that there is no sovereign power under which all modes of existence can be organized, and there is no meta-language through which one can master the diversity of all discursive or material practices; but there are intra-relations in which one can get lost in a quantum field of sonic matter by moving into the cracks of the sensorium and the plant biosphere, which includes Indigenous voices. The alterity of plant life is daunting from an eco-feminist materialist position in that relationships are the default state of existence and sonic experiences uncover alternative or additional explanations in a (post)phenomenological world – which is embedded in the stuff of acoustics in the many ways humans hear the world. Thus, to communicate a posthuman, symbiotic understanding of vegetal matter necessitates understanding how sound matter intra-performs through a sonic language – where intra-relations with plant life have complex boundaries for humans. As a creative practitioner, how does one define the mutually beneficial engagement in plant communication with creative musical encounters? Entanglement is messy and a becoming with the universe as a philosophical sonic meditation and worlding. This entails expanding on plants as cosmogonic beings, world builders, and we, perhaps, are the by-products of the lives of our vegetal others.