To create a piece inspired by Billie Eilish 's song you can focus on its signature intimate atmosphere, introspective lyrics, and minimalist production. Creative Elements to Incorporate
Aim for a "whisper-pop" style. Use heavy compression to bring out mouth sounds and breaths for an intimate feel. You can roll off the high-end frequencies to keep the vocals dark and "close" to the listener. Billie Eilish - Getting Older
If you are composing, you can follow the song's harmonic structure: B♭ Major. Core Chords: B♭ Major, G minor, C minor, and E♭ Major. To create a piece inspired by Billie Eilish