I have heard of Muckrum Wakes - and the pick and the malt shovel is an old favourite of mint - the coat of arms for the place where I grew up has a pitman and a brewer as supporters.
I have been trying to recall how I first heard the May day garland - there was definitely a chorus - the 'you ladies all' - and the verses are familiar - just slightly changed from the Oxford book. I suppose I should just do that many have done - alter and adapt.