Lamma Bada Yatathanna

Lamma Bada Yatathanna (لما بدا يتثنى) is an Arabic muwashshah of the Nahawand maqam. The poem is considered one of the most famous Arabic pieces of its era.

Identity of the poet
The author of the piece is disputed, and thought to be either Lisan al-Din Ibn al-Khatib (1313 - 1374 AD), which is the most plausible, or (1793 - 1828 AD).

Rhythm
The song is in 10/8 time. 

Melody
Its mode is the nahawand maqam (مقام نهاوند, harmonic minor scale). 

Renditions
The song is a standard of Arabic and Middle Eastern musical repertoires. Versions of the song have been recorded by artists including Fairuz, Sabah Fakhri, Souad Massi, Lena Chamamyan, Nabyla Maan, Hamza El Din, Sami Yusuf, Abeer Nehme and Talia Lahoud.