A Peter Maxwell Davies moment

Peter Maxwell Davies's 1973 work Stone Litany is a setting of Norse runic inscriptions that are found on the walls of the great Neolithic tomb of Maes Howe, in the Orkney Islands. Davies's grouping ends with "MAKUS MATTR RÆISTRUNAR ThÆSAR," or "Max the Mighty carved these runes." Most commentators seem to take it as a happy coincidence that the composer found a version of his own nickname among the inscriptions. Having read through several transliterations of the complete graffiti, though, I have to conclude that Davies was having a bit of fun with his listeners. The name "Makus" does not appear. But in Barnes 15 / Farrer XXII, to use two competing numbering systems, the name before "carved these runes" is indecipherable, and Davies can be excused for making a convenient substitution.