Čoček, the dance, is what is done to Čoček, the music. Both originated in Turkish culture, and were perpetuated and popularized in the Balkans by the Roma. See https://folkdancefootnotes.org/dance/a-real-folk-dance-what-is-it/about/kocek-the-original-cocek-turkish-male-bellydance/ Nowadays, Čoček music is everywhere, and there are many different dances, both solo and choral, that are danced to it. It is played at various tempos, by various acoustic and electronic instruments and with time signatures including 2/4, 4/4, 7/8 & 9/8. So what makes Čoček music different from other Balkan music? Mainly, it’s the syncopated beat. Below is a typical pan-Yugoslav Kolo, followed by a similar social situation where the music is Čoček.
A Čoček in 9/8. Notice the syncopated bass drum. Same musicians, including Kurta Ajredinovic on clarinet, Jasko Jasarevic on violin. Different footwork, though. https://www.youtube.com/watch?v=5O-17-ed0Qk
Čoček music has many stars – none bigger than Ferus Mustafov. Here he embarks on another feature of Čoček music – extended eastern-tinged solos. https://www.youtube.com/watch?v=OXkuYF4pyAM
Folkdance Footnotes 