"So I say now that there are eight rhythmic modes (alhan = melodies), to each are [associated] measures of combinations of beats (tanghlm).Etc. (the full quote takes up too much space)
As for the first of them, its measure is three consecutive beats (naghamat), and one quiescent.
And the second, [its measure] is three consecutive beats and one quiescent, and one moving. Those two modes stir the humor of the blood and the temperament of sovereignty and dominion.
As for the 'iqacat [rhythmical modes], which constitute the genres of [i.e. from which derive] all the rhythms, they are divided into eight modes, and they are: al-thaqll alawwal, al-thaqll al-thani, almakhuri, khafif al-thaqll, al-ramal, khaftf al-ramal, khafif al-kbafif, alhazaj.
As for the al-thaqll al-awwal, it is three consecutive beats (naqarat mutawaliyat), then a quiescent beat, then the rhythm returns as it began.
Al-thaqil al-thani is three consecutive beats, then a quiescent beat, then a moving beat, then the rhythm returns as it began.
And the third, its measure is two consecutive beats-there is not between them the tune of a beat-and one quiescent, and between putting down and raising up [and raising up] and putting down is the time of a beat. And this mode alone moves [the humor of] the yellow bile, [the temperament of] courage and audacity, and what is like them.
Who said it?
The prize: my admiration for knowing it. ;)