Here are a few top websites where you can download high-quality instrumental MP3s of "Stayin' Alive":
To understand why the instrumental version is so sought after, one must appreciate the production. "Stayin' Alive" was constructed by the legendary "Trident Triangle"—Barry Gibb, Robin Gibb, and Maurice Gibb, alongside producer Karl Richardson and the late Albhy Galuten.
: Official vinyl singles and CD promos from the 1970s and 1990s often contain official studio instrumentals. These can be digitized using high-end audio interfaces.