Before you ask, it wasn't because they were terrible chanters!
Good singers, like cracking pubs, are dime a dozen in Glasgow, from the folk who regularly find themselves mic-in-hand in a karaoke bar or artists who have graced the charts with their voice.
The ban was in force from 1922 to 1932, as part of a Glasgow Corporation prohibition covering singing, preaching, lecturing and demonstrating in public parks without prior written authority. The byelaw had originally been passed by the authorities in 1916, but wasn't invoked until six years later. And when it did come in to force, it caused no shortage of problems in the city.It came during the era of political radicalism known as the 'Red Clydeside' era, one marked by anti-war activism, militantism, strikes and the imprisonment of a number of campaigners for their anti-war propagandizing.
While the focus of the law was of course on Glasgow Green, it saw meetings cleared from parks across the city as the right of assembly was removed for Glaswegians.