Heart Attack (가슴이 터질 것 같아)

"Heart Attack (가슴이 터질 것 같아)" translates its title literally through every production choice — this is a song about overwhelming physical sensation, and the arrangement is constructed to approximate that experience. The beat arrives with immediacy and stays there, a mid-tempo pulse with enough drive to create urgency without collapsing into chaos. Synthesizer lines jab rather than sustain, percussion keeps the tempo front of mind, and the overall sonic palette is bright to the point of dazzle. The vocal delivery captures the specific quality of feelings that arrive faster than the language to describe them: short melodic phrases, rapid exchanges between members, a breathlessness in the execution that matches the song's stated subject. The lyrical territory is the particular helplessness of early infatuation — the way a specific person disrupts ordinary function, makes concentration impossible, turns routine interactions into something requiring active management. The song treats this not as suffering but as electricity, and that distinction is crucial. There's genuine joy in being overwhelmed in this specific way, and the track communicates that without coyness or irony. This is perfect driving music for the early stages of something — the part where you're still memorizing someone's vocal patterns, still startled to see a notification from them, still not sure if what you're feeling is entirely good for you but completely certain you don't want it to stop.