The Schellenbaum appears in dozens of Ottoman miniatures. They really are interesting sources.
I'm simplifying a bit, but the Ottomans incorporated the Greek music of the Byzantines with that of the Arab and Persian courts. Of course they also had their own melodies as well as a strong Sufi tradition.
For anyone interested in Ottoman history (a pet subject of mine), I can't recommend "Lords of the Horizon" highly enough. Very entertaining popular history, full of details, best place to start from.