The man bent over his guitar,
A shearsman of sorts. The day was green.
They said ‘You have a blue guitar,
You do not play things as they are.’
The man replied ‘Things as they are
Are changed upon the blue guitar.’
Wallace Stevens The Man with the Blue Guitar 
The guitarist has not been active on the Shannon, where there has been no change in the list of holders of marked fuel trader’s licences [.xls].