This entry may be a misspelling of Shetland accordionist <<ddp:Nicolson, Alan#3155>>. It is probably not Arthur Nicholson, a Shetland folk singer. There is also an Angus Nicolson.

The tune <<ddt:Morag's Spicy Rum#9873> currently attributed in SCDDB to this composer is elsewhere (https://www.bbc.co.uk/programmes/m001x46t) ascribed to Alasdair MacPhail.