On her debut EP, the 12-year-old artist turns rage rap, emo, and hyperpop into a surprisingly assured statement of self If it wasn’t already clear that North West , the scion of the West-Kardashian throne, had inherited serious star power, it only takes roughly 10 minutes for her to prove it on her debut EP. Over an efficient five tracks, West traverses the sonic styles of her generation — from nu-metal riffs to rage-rap 808s — with startling confidence. At just 12 years old, North’s debut is impressive regardless of her famous pedigree. Even for music royalty, talent still has to announce itself, and that’s what she’s done with N0rth4evr . The EP opens with “H0w Sh0uld ! f33l,” spelled with the same chaotic eccentricity of the song titles on Playboi Carti ’s Whole Lotta Red , and clocking in at just under two minutes.…