: The original is set at 105 BPM in C minor . This tempo provides a "driving" sense of urgency.
: The 35% increase in speed can raise the pitch by approximately 5.5 semitones . Adele’s powerful soul vocals are shifted into a "chipmunk" or "kawaii-inflected" register. 3. Cultural and Psychological Impact
Nightcore, originally a Norwegian project from 2001, involves speeding up source material by roughly , which naturally raises the pitch.
To understand the nightcore version, one must first look at the foundation laid by Adele and producer Paul Epworth.
The popularity of the sped-up version, particularly on TikTok, stems from several modern listening habits: