I made a trio of photos of my piano keyboard two months ago, which can be viewed at Critique - Piano Trio, and finally got around to following up with a second trio of photos. My hands are in all of these photos, which required using a sound-activated remote shutter release in the first two photos. As a nod in the first photo to one of my favorite composers, I am playing the first chord of Richard Wagner's opera, Tristan and Isolde, which he completed in 1879. Though that chord had been written by many master composers long before Wagner wrote it, none had written it in the context that Wagner used it, which was to set up a series of chromatic tones that defied a sense of tonality. Use of that chord in that context was such an innovation that it is famously called the "Tristan chord."