You can add the Troop Band Calendar to your personal calendar calendar. Note it can take up to 48 hours for changes in the troop calendar to appear on your calendar.
With the App
Select Events tab at the bottom
Click Gear at the top right
Export Band Calendars
Select the Calendar
Past the URL in your calendar
From the website band.us
Select Band Settings in the left habe menu
click the change button to the right of "Export Band Calendar"
Select the calender you want to add
Select the calendar you want to add it to or copy the URL