triple metre; for example, a time signature of 6 8 usually indicates compound duplemetre, and similarly 12 8 usually indicates compound quadruple metre. Shown
12 metres in length (30 with Alexander ALX500 bodywork, and 20 with Duple Metsec bodies), but all others have a shorter length. Thirty 11.3-metre Tridents
Sextuple metre (Am. meter) or sextuple time (chiefly British) is a musical metre characterized by six beats in a measure. Like the more common duple, triple