Mazandaran trumpet: Another group of wind instruments, absolute wind instruments with a cup- like mouthpiece, that has different uses in different parts of Iran. Mazandaran's trumpet is unique in terms of sound, building and instrument making and is one of the oldest and most primitive wind instruments in Iran. This instrument is fully compatible with the geographical area of ​​Mazandaran in terms of material and construction Appearance: Mazandaran trumpet is a spiral made of tree bark. also spirals the bark of spring trees to form a funnel, then wraps around the instrument, and also tightens the body by using razors that are placed inside the skin. The narrowing section is for blowing, but not in the form of a cup-shaped structure. However, the technique of sounding it is in the form of wind instruments with a cup-shaped mouthpiece. Sometimes a double-layer mouthpiece is placed on top of this horn, in which case it is placed in the group of tongue-shaped wind instruments. administration: Mazandaran trumpet has been used in forested areas for news and no other instrument accompanies it. Due to the use of special woods, the best season to make it, is spring, when the bark is juicy and easily detached from the tree.