{"version":"1.0","type":"rich","title":"Web tuner","description":"This interactive web tuner visualizes the entire audible frequency range (A-1 at 13.75Hz to G#9 at 26578.5Hz) as a continuous circular scale, with the current note highlighted and animated as the user navigates. Built with D3.js for SVG rendering and Timbre.js for audio synthesis, it uses canvas for real-time sound visualization. Users explore the chromatic scale using arrow keys — Up/Down for adjacent semitones, Left/Right for octave jumps — while pressing S or Space toggles the generated sound on and off, linking visual position to auditory frequency.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-e59f757019dee7fcbf36?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}