Option 1: Google Calendar App (Android or iPhone)
Copy this .ics link: https://calendar.google.com/calendar/ical/siegelbandsecretary%40gmail.com/public/basic.ics
Go to iPhone Settings > Calendar > Accounts
Tap Add Account > Other > Add Subscribed Calendar
Paste the link and tap Save
Copy this .ics link: https://calendar.google.com/calendar/ical/siegelbandsecretary%40gmail.com/public/basic.ics
Locate the option to "Add" or "Subscribe" to a calendar via URL in your preferred calendar app
Paste the .ics link and save
*Note: For Options 2+3, do not "import" the file you can download by clicking/tapping the .ics link above. That would only import a snapshot of the band calendar at that exact moment in time. Instead, copy and paste the .ics link to "subscribe" to the band calendar, which creates a read-only live feed in your calendar app so you never have to enter a band event manually!