Book excerpt: (Easy Guitar). The Strum & Sing series provides an unplugged and pared-down approach just the chords & lyrics with nothing fancy so you can strum along. Here are easy-to-play, artist-approved arrangements of two dozen top tunes by John Mayer: Bigger Than My Body * Come Back to Bed * Daughters * Gravity * Half of My Heart * Slow Dancing in a Burning Room * Vultures * Waiting on the World to Change * Why Georgia * Your Body Is a Wonderland * and more!