For this step and the next step you can open the chart, open your HTML editor, and enter the desired code while viewing the open chart.
6 - Minimum velocity Pick 0-127. For minimum and maximum velocity, "velocity" is the equivalent to the dynamic with which a musical instrument is played. For minimum velocity, choose the softest dynamic you'd be happy with.
7 - Maximum velocity Pick 0-127. For maximum velocity, choose the loudest dynamic you'd happy with.
8 - Shortest possible note duration Remember, "note duration" is measured in milliseconds (1/1000th of a second). Choose the shortest duration that you'd be happy with.
9 - Maximum possible note duration Remember, "note duration" is measured in milliseconds (1/1000th of a second). Choose the longest duration that you'd be happy with.