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.

As his career grew, David Byrne went from playing CBGB to Carnegie Hall. He asks: Does the venue make the music? From outdoor drumming to Wagnerian operas to arena rock, he explores how context has pushed musical innovation.