Haydar Haydar is a well known traditional mysticism song. It has been created by anonymous and recorded by many musicians like Orhan Hakalmaz, Emel Taşçıoğlu, Çetin Akdeniz, Kemal Alaçayır, Ersin Faikzade, Ali Yılmaz, Müzeyyan Senar, Neşet Ertaş, Müslüm Gürses, Bağlama Üçlüsü ("Bağlama Trio"), and Erdal Akkaya. The song is traditionally performed on a long-necked stringed instrument called a saz or bağlama.