- U - - | - U - | - U - - | - U - |
If again, returning to the Tawíl, we make the break after the
Watad of the second foot we obtain the line:
’Ílun.fa’ú. Lum.mafá ’Ílun.fa’u Lun.mafá, and as metrically
’Ílun.fa’ú (two Sabab followed by Watad) and Lun.mafá (one Sabab followed by Watad) are=’Ílun.mafá and Lun.fa’ú respectively, their Taf’il is effected by the same substitutions as in ii. 5 and 6, and they become:
3. Basít, consisting of twice
Mustaf.’ilun Fá.’ilun Mustaf.’ilun Fá.’ilun,
in conformity with the classical scheme:
- - U - | - U - | - - U - | - U - |
Thus one metre evolves from another by a kind of rotation, which suggested to the Prosodists an ingenious device of representing them by circles (hence the name Dáirah), round the circumference of which on the outside the complete Taf’íl of the original metre is written, while each moved letter is faced by a small loop, each quiescent by a small vertical stroke[FN#453] inside the circle. Then, in the case of this present Dáirat al-Mukhtalif for instance, the loop corresponding to the initial f of the first Fa’úlun is marked as the beginning of the Tawíl, that corresponding to its l (of the Sabab fun) as the beginning of the Madid, and that corresponding to the ’Ayn of the next Mafá’ílun as the beginning of the Basít. The same process applies to all the following circles, but our limited space compels us simply to enumerate them, together with their Buhúr, without further reference to the mode of their evolution.
B. Dáirat al-Mútalif, circle of “the agreeing” metre, so called because all its feet agree in length, consisting of seven letters each. It contains: