public int getXForBeat(int beat) {
        BeatGrid grid = beatGrid.get();
        if (grid != null) {
            return millisecondsToX(grid.getTimeWithinTrack(beat));
        }
        return 0;
    }
public int getXForBeat ( int beat ) { BeatGrid grid = beatGrid . get ( ) ; if ( grid != null ) { return millisecondsToX ( grid . getTimeWithinTrack ( beat ) ) ; } return 0 ; }
Determine the X coordinate within the component at which the specified beat begins.

@param beat the beat number whose position is desired
@return the horizontal position within the component coordinate space where that beat begins
@throws IllegalArgumentException if the beat number exceeds the number of beats in the track.