Rumble.m4a — 01

: The song was originally a 2018 collaboration between Fred again.. and Flowdan. Skrillex later reworked it, while Four Tet served as a consultant to ensure it wasn't "overproduced".

The .m4a extension indicates an file, which is a standard format for music on iPhones and iTunes. 01 Rumble.m4a

: They typically use AAC (lossy) compression to keep files manageable, or ALAC (lossless) for high-fidelity audio. : The song was originally a 2018 collaboration