If you're specifically looking for an m4a file of the song, I recommend checking legal music distribution platforms like iTunes, Apple Music, or Google Play Music, as they often provide high-quality audio files in various formats, including m4a.
The persistence of the "m4a" extension in search queries highlights a niche but important aspect of music archiving. 01 Crazy In Love m4a
On a standard 128kbps or even 192kbps MP3, the sub-bass in "Crazy In Love" distorts, and the brass loses its "bite." An retains the dynamic range. The brass stabs sound sharp, the kick drum has physical weight, and Beyoncé’s vocal layering in the bridge remains distinct. If you're specifically looking for an m4a file
The suffix is the most revealing part of the file name. (MPEG 4 Audio) is Apple’s container format, typically using the AAC (Advanced Audio Coding) codec. The brass stabs sound sharp, the kick drum