Daf is one of the most ancient frame drums in Asia and North Africa. As an Persian instrument, in 20th century, it is considered as a Sufi instrument to be played in Khanghah-s for Zikr music but now this percussion instrument has recently become very popular and it has been integrated into Persian art music successfully.
Dotar
Dotar
The dotar (literally in Persian meaning "two strings"), and it comes from a family of long-necked lutes and can be found throughout Central Asia, the Middle East and as far as the North East of China in Xinjiang too.
In Iran, the dotar is played mainly in the north and the east of Khorasan as well as among the Turkmen of Gorgan and Gonbad. The instrument remains the same but its dimensions and the number of its ligatures vary slightly from region to region. Two types of wood are used in the fabrication of the dotar. The pear-shaped body is carved out of a single block of mulberry wood. Its neck is made of either the wood of the apricot or the walnut tree. It has two steel strings, which in the past were made of silk or animal entrails. The dotar is tuned in fourth or fifth intervals.
Kamanche
Kamanche
The kamanche is a bowed spike fiddle. The instrument has four metal strings, and the body consists of a wooden hemisphere coverred with thin sheepskin membrane. Oddly, the instrument's bridge runs diagonally across this membrane. The instrument is highly ornate and is about the size of a viola. The tuning varies depending upon the region of the country where it is being played. In Tehran, the kamanche is tuned in the same manner as a violin: G, D, A, E.
Nay
Nay
The nay is one of my favorite instruments. It is a vertical reed flute with a long history in Persian classical music. The instrument has six finger holes in the front and one in the back. I understand the instrument can be made with some success from PVC pipe.
Santur
Santur
The santur is a struck zither in the form of a shallow, regular trapezoidal box. There are several sound posts inside the box, and two small rosettes on the top panel which help to amplify the sound. The santur has 72 strings, arranged in groups of four, i.e. each of four closely spaced strings are tuned to the same pitch. Each group of four strings is supported by a small,movable, wooden bridge; the bridges are positioned to give the instrument a range of three octaves.
Setar
Setar
The setar is a four stringed lute. Two of the strings are made of steel, two are of brass, and they are tuned to c, c semi-sharp, g, and c semi-sharp, respectively. In the above painting, it is depicted with a zarb. The average setar is 85 cm long, 20 cm wide, and has a 15 cm deep gourd, and is made entirely of wood. (Unlike the tar which has a membrane streched across the body.) Also, unlike the tar, the player plucks the strings with the nail of the index finger, instead of using a plectrum.
Tar
Tar
The tar is the most widely used plucked instrument in Iran today. It is a fretted lute with six strings, five of steel and one of brass. It has a long neck and a double bellied sound box, over which is streched a thin sheep skin membrane. The tunings of the strings are changed according to the dastgah that is being played, and the twenty six frets are movable. Finally, the strings are plucked with a plectrum.
Tombak
Tombak
The dombak is the chief percussion instrument of Persian classical music. It is a one-headeddrum that is carved of a single piece of wood, and is open on the bottom. Across the larger, upper part of the body is streched a sheepskin membrane, that is glued into place. Thus, the instrument cannot be tuned; the performer prepares it for a piece by warming the membrane over a heater.