Songs are the soundtrack of our lives. But why exactly do they make us feel the way they do? Songwriter Scarlet Keys sits down at a piano to deconstruct the tools musicians use to make a melody unforgettable — from tone and repetition to lyrics and chords — and sheds light on music’s ability to transform moments into memories.

Nutritious crops aren’t getting to the people who need nutrition most, even in one of the most fertile places on Earth: Indonesia. Exploring some of the forgotten foods from the country’s more than 17,000 islands, food entrepreneur Helianti Hillman explains why centering food policy on biodiversity, rather than monoculture, is the key to healthier people and a healthier planet.

What if the secret to a happy relationship isn’t following the rules, but rewriting them? In this refreshing talk, couples therapist Stephanie R. Yates-Anyabwile explores why letting go of traditional societal expectations of romantic relationships — like sharing the same routines or even, in some cases, living together — can help couples embrace their individuality, reduce conflict and build stronger, more fulfilling connections.

To launch new initiatives within the confines of a large corporation, you’ll need to work with the system, not against it, says “intrapreneur” Dave Raggio. He shares three lessons on innovation he learned the hard way — so you don’t have to. (Made in partnership with Intuit)

Dana R. Fisher calls herself an “apocalyptic optimist” based on her research as a sociologist of large social movements. Her studies suggest that ever-increasing climate disasters will get people out in the streets demanding the action we need. She breaks down how to cultivate resilience to catastrophe in yourself and your community — and how to rally for change in the face of seemingly intractable problems.