Bill Sharpe, who along with his supportive wife Joan, and their companionable dog Billy, was relaxing in their cosy Littleport home, when I visited. In the course of conversation, talking about his involvement with the Littleport Brass Band, I asked him how he got into music, and who influenced him? His father Sidney, whose nickname was Sam, was an excellent tuba player who worked for the Metropolitan Police force in London and also played for…