If you were actually referring to a you saw online (like a download guide or technical write-up), could you share more of the filename or context? That way I can help you interpret or locate exactly what it's about.
The orchestral interlude. Your left ear hears violins, your right ear cellos. The FLAC version maintains phase coherence; lower bitrates collapse the stereo image. Adele-Skyfall -Single--2012-FLAC