You're in a coffee shop. A song comes on. Suddenly you're seventeen again, standing in the rain outside a concert venue, laughing with someone you haven't spoken to in years. The feeling is so vivid it takes your breath away.
Researchers have a name for that feeling, and a study behind it.
Music-Evoked Autobiographical Memories
Researchers call this phenomenon MEAM: music-evoked autobiographical memory. The term was formalised by Dr. Petr Janata at the University of California, Davis, in a landmark 2007 study. His team played excerpts of popular songs to participants and found that roughly 30% triggered vivid, specific autobiographical memories. Not general feelings of 'the good old days', but concrete recollections of particular events, people, and places.
A 2016 study by Belfi and colleagues went further, directly comparing music to photographs as memory cues. The result: music produced stronger emotional responses and more vivid recall than photos. Music doesn't just remind you of the past. It reconstructs the emotional state you were in when the memory was formed.
What happens in the brain
In 2009, Janata used fMRI brain scanning to map what happens when personally meaningful music plays. He found that it activates the medial prefrontal cortex (the brain region most associated with self-reflection and autobiographical memory) while simultaneously lighting up limbic and reward-processing areas.
In other words: music doesn't just trigger a memory. It reactivates the entire emotional circuit that made the moment meaningful in the first place. The warmth, the excitement, the bittersweetness: all of it comes flooding back because music recruits the brain's deepest memory and emotion systems simultaneously.
Why this matters for everyday life
Most of us experience this regularly and think nothing of it. A song on the radio. A track in a playlist. A melody hummed by a stranger. Each one has the potential to unlock a moment we'd otherwise never revisit.
The problem is that these moments are fragile. The song plays, the memory surfaces, and then it's gone. Back into the chaos of daily life. No anchor. No way to return to it deliberately.
What if you could save the connection between a song and a moment, so you could return to it whenever you wanted?
That's the question that led to Chord. Every moment you save in Chord is kept with its song. Open it again in Relive and the clip fills the screen while the track plays. And if you switch on Song-Triggered Recall, the song can bring the night back by itself: when a track from one of your nights plays on Spotify or Apple Music (or anything that scrobbles to Last.fm), Chord sends a notification naming the song and the night. It's opt-in and respects Quiet Hours.
More of the research, from the brain imaging to live music and the crowd: the science behind Chord →