The muscat grape comes in many forms, Muscat à Petit Grains, Muscat de Alexandria (called Zibbibo in Sicily), and Muscat de Hambourg to name the three most popular varieties. In Spain it is called Moscatel, whilst in Italy it is the grape used in Moscato d'Asti.
Muscat produces the most "grapey" flavours of any wine grape (which so often taste of anything but grapes!)