This is the third-string band of the Hampshire youth music service. Over the years, there has been some confusion over names, with substantial overlap in personnel between the various bands in the Hampshire county system, and even use of the same name to denote two different bands in the system competing in different sections at the same contest on the same day!
See also the <a href="https://brassbandresults.co.uk/bands/hampshire-county-youth/">the main band</a> and <a href="https://brassbandresults.co.uk/bands/hampshire-youth-training/">the training band</a>.