This is a wonderful piece of music from the Greek composer and pianist Vassilis Tsabropoulos and the German celloist Anja Lechner with a track from the excellent album "Chants, Hymns and Dances" (ECM) with the catchy title "Trois Morceaux Apres Hymnes Byzantins".
Curiously on this clip, the audio is accompanied with pictorial images of Istanbul. Always a good thing, as it is one of my favourite cities.
Lately the music of Vassilis Tsabropoulos has become the soundtrack to my daily commuting life. I urge you to investigate the recordings of this very talented musician.