Bernie Krause

Whale song is a body of bioacoustic recordings featuring the vocalizations of whales—most famously humpback whales—presented and listened to as music. Although whales have sung for millennia, the genre coalesced in the late 1960s and 1970s when high‑fidelity hydrophone recordings became widely published on albums and in documentaries. The sound world is characterized by slowly evolving phrases, haunting glissandi, pulsed rhythms, and a striking dynamic and spectral range, from infrasonic rumbles to piercing squeals. Humpback whale songs exhibit hierarchical structure (units → phrases → themes → songs), seasonal variation, and cultural transmission across populations, which listeners perceive as forms of motif development and long‑form composition. As a listening genre, whale song straddles music, science, and environmental sound art. It is used for contemplation and relaxation, has influenced ambient and new age aesthetics, and remains a touchstone for eco‑acoustic awareness.

Nature sounds is a genre centered on unprocessed or minimally processed recordings of the natural acoustic environment—such as rain, wind, ocean surf, rivers, birdsong, insects, and forests—presented as the primary listening material. Rather than foregrounding melody or harmony, the genre emphasizes environmental texture, spatial depth, and the psychoacoustic qualities of place. While nature has been recorded since the early days of audio technology, nature sounds emerged as a distinct listening genre with the rise of ambient and New Age listening cultures, wellness and relaxation records, and the availability of high-fidelity field recording gear. Releases often aim for restorative, meditative, or documentary experiences, ranging from untouched soundscapes to gentle edits that preserve realism.