the leading tone: The Picardy third (Fr. tierce de... →
leadingtone: The Picardy third (Fr. tierce de Picardie) is the cadential appearance of a tonic major chord in a minor key, normally at the end of a piece or major section but sometimes also merely at the end of a phrase: Historically and perhaps more properly speaking, it is… ohh, really. I have learnt it … a long time ago.