Analysis of information sources in references of the Wikipedia article "Daf" in English language version.
The vast majority of Muslims hold all forms of music to be forbidden, others permit certain forms of unaccompanied singing, while others will permit the use of daff or drum like a tambourine (without the cymbals). In some Sufi and Shia circles music is permitted.
Daff ... It has been important to Sufi music.
