Sounds fascinating, and it’s easy to see why. The physics of sound breaks down a track into a set of frequencies, each with a certain amplitude and phase. When those waves hit a surface, they reflect, diffract, and interfere, creating resonances that either reinforce or cancel specific tones. A room with a lot of long‑echoing surfaces will amplify lower frequencies, giving a sense of weight and spaciousness, while a dry, absorbent room suppresses those same resonances, making the sound feel tight and claustrophobic. Humans tend to map these acoustic cues onto emotional states—low, sustained frequencies often feel comforting or ominous, whereas bright, high‑frequency harmonics can feel energetic or tense. If you record a piece, you could analyse the spectral envelope over time, compare that to your subjective notes on mood, and see how the two align. It would be an interesting experiment to quantify the relationship between those numbers and the feelings you describe.

That sounds like a solid plan. Grab a spectral analyser, map the vibes you feel, and see what the numbers say. If they line up, it’ll be proof that even the quiet data can echo your heart’s rhythm.