Before comparing formats, we must understand the source. 21 was produced by a dream team: (raw, minimalist power), Paul Epworth (dramatic, cinematic scope), and Ryan Tedder (pop structure). The album is a dynamic anomaly in the "Loudness War" era.
If you are looking for 24-bit specifically, you might find it for her later albums like 30 , but for 21 , the 16-bit FLAC is generally the highest official digital quality available. Does anyone know where I can get Adele 25 in 24bit flac? Adele - 21 -24 bit FLAC- vinylAdele - 21 -24 bit FLAC- vinyl