At age 50, Miles Davis’ album Kind of Blue has been officially and unanimously hailed by the US House of Representatives. Rep. John Conyers (D-Michigan) sponsored H.Res 894, which on Tuesday passed 409 to 0, recognizing the “unique contribution” of the 37-minutes of modal improvisation trumpeter Davis and his stellar sextet recorded on March 2 and April 22, 1959. The honor is richly deserved, and if you have to ask why, spend some quality time with the music. To learn more about it, I recommend Ashley Kahn’s well-researched book of “the making of Miles Davis’ masterpiece.”