If you want, I can:
The 24-second silence before the hidden track contains analog tape hiss. In FLAC, that hiss is a constant -70dB floor. In MP3, the encoder mistakes that hiss for noise to delete, creating a "gating" effect where the hiss disappears and reappears unnaturally. The 1975 -Deluxe- -2013- -FLAC-
In lossy formats, this sounds like a fuzzy synth. In FLAC, you hear the overtones of the detuned Juno-60. You can perceive the room reverb tail lasting exactly 2.3 seconds before the vocal cuts in. If you want, I can: The 24-second silence