Things to do outside London in May 2019

My regular look ahead to events happening next month that would probably be in my events guide, if only they weren’t happening outside the psychological barrier of the M25 motorway.
Singing from the Great Tower
1st May
For over 500 years, the choir of Magdalen College climb to the top of a tall tower and sing at 6am to greet the rising sun.
Oxford, OxfordshireSunrise Morris Dancing
1st May
Revived in the 1970s, old tradition to dance at sunrise on the local castle mound.
Laxton, Nottingham