# Welcome to the Highcharts Gantt JS (gantt) Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

Feel free to search this API through the search bar or the navigation tree in the sidebar.

# series.xrange.sonification.defaultInstrumentOptions.mapping.pan

Pan refers to the stereo panning position of the sound. It is defined from -1 (left) to 1 (right).

By default it is mapped to `x`, making the sound move from left to right as the chart plays.

Can be set to a fixed value, a prop to map to, a function, or a mapping object.