A Highcharts Gantt chart made accessible by the MAIDR Highcharts adapter. An interval has two numbers and no baseline, so the two are split across two channels: the pitch carries each task's length, and its stereo position carries where it starts along the axis — so a lane whose work happens late sounds late, and two lanes whose tasks line up sound like they line up. Click on the chart, use up and down arrow keys to move between lanes and left and right to walk a lane's tasks.