These are two classical Arabic songs performed by Al-Kindi Ensemble featuring three meters and three meter changes:
The first rhythm is Muhajar, an Arabic rhythm in 14/8.
The second rhythm is a 32/8 cycle and the third is a 6/8 rhythm, which then changes back to the 14/8.
Omar Sarmini & Ensemble Al Kindi
from the double CD The Crusades seen Through the Eyes of the Orient
Adel Shams El Din – percussion