Broadly speaking the Minch may be wide depending on your outlook. Aural word variations abound with the Mingulay Boat Song   Some versions have Keel your haul, others have Heel yo ho, Hill yo ho. Wide the Minch, White the Minch..   Still the same copyright work by Roberton, though on the verge of running out of official copyright at the end of next year. I do wonder though whether the publishers will still collect on it - especially with digital distribution companies using software matches? Roberton died in 1952, so after 70 years it falls out of copyright at the start of 2023.   A number of early 20th century songs should be falling out of copyright due to post 70 years of authorship deaths, but I don't know if this is being acted upon. Harry Lauder died in 1950, so his self-penned Scots songs should be out of copyright. Westering Home with Roberton's words will also be fully out of copyright in a year's time (though everyone has been acting as if that one is out of copyright anyway!)