[Raak] The "rules" spring from what is considered consonant and dissonant, views of which have changed throughout musical history. Hence you can end up with a fugue like that in Walton's 1st Symphony, which would have Prout screaming in his grave. All good clean fun
Of penny-an-inchA rare variety of heather whose dried roots are used as a herb. Its Scottish folk name derives from it being considered a great extravagance.