The "blackberry song" in the title serves as a double entendre. On the surface, it refers to the act of humming while you work in the fields. Metaphorically, it represents the cyclical nature of toxic relationships—the music you make while trying to convince yourself the pain is worth the reward.
The song sits at the intersection of and Alternative R&B . It eschews the trap hi-hats dominant in modern R&B for swing rhythms and jazz chords, aligning it more with the "Soulquarian" movement of the late 90s/early 2000s.