Kamil (metre)
Kāmil (Arabic "the perfect") is the second commonest metre (after the "ṭawīl") used in pre-Islamic and classical Arabic poetry. The usual form of the metre is as follows (where "–" represents a long syllable, "u" a short syllable, and "uu" one long or two shorts): The mnemonic words ("tafāʿīl") used by Arab prosodists to describe this metre are: "" (). The "kāmil" resembles the "wāfir" metre in that it makes use of "biceps" elements (that is, places in the verse where two short syllables can be replaced by one long one). In Arabic poetry. The "kāmil" metre has been used  for Arabic poetry since early times and accounts for about 18%-20% of the poems in early collections. Two of the famous seven pre-Islamic Mu‘allaqāt poems (the 4th and 6th) are written in the "kāmil" metre. One of these is the "mu‘allaqa" of Labid ibn Rabi‘a, which begins as follows: Another, later, example of the metre is the qasida by the 10th-century poet al-Mutanabbi which opens as follows: As can be seen, the most common form of the metron is | uu – u – | and the contracted form | – – u – | occurs in the above example in only  one third of the cases. In Persian poetry. Although relatively common in Arabic, this metre is scarcely ever used in Persian poetry. One post-classical exception, by the 18th-century poet Hatef Esfahani, is a short 6-couplet ghazal which begins as follows: This Persian version is a tetrameter, divided into two dimeters, and every metron is of the form | uu – u – |. (Poems are also commonly found in Persian with the metron | – – u – | (see Persian metres) but the two are not mixed in the same poem.) Hatef's poem is traditionally sung to a melody ("gusheh ) called Chahārbāgh, named after the well-known avenue Chaharbagh in Isfahan. In Turkish and Urdu. The kāmil" metre is also not found in Ottoman Turkish or (with rare exceptions) in Urdu.