"You Don't Know What Love Is" is a ballad performance from Miles Davis's 1954 album Walkin', featuring a single, deeply expressive trumpet solo from Davis. Gene de Paul's standard, with its AABA form in D minor, receives an intimate one-chorus treatment at a slow tempo of 66 beats per minute that showcases Davis's extraordinary gift for ballad interpretation. His muted trumpet tone, at once fragile and commanding, transforms the melody into a statement of profound emotional depth, each note placed with the precision and sensitivity of a master painter applying brushstrokes to a canvas. The performance is notable for its economy, as Davis says everything he needs to say in a single chorus, demonstrating his conviction that what you leave out is as important as what you put in. This approach to ballad playing, characterized by space, silence, and emotional directness, would become one of Davis's most influential contributions to jazz, inspiring generations of musicians to value restraint and expressiveness over technical display. The track provides a contemplative contrast to the more extroverted performances elsewhere on the Walkin' album, revealing the tender, vulnerable side of an artist more often associated with cool detachment. The rhythm section of Horace Silver, Percy Heath, and Kenny Clarke provides subtle, supportive accompaniment that never intrudes on Davis's deeply personal statement.