The goblet drum (also chalice drum, darbuka,debuka, doumbek, dumbec, or tablah, Persian: دمبک‎, Arabic: دربوكة‎ / ALA-LC: darbūkah) is a hand drum with a goblet shape used mostly in the Middle East, North Africa, and Eastern Europe.

Though it is not known exactly when these drums were first made, they are known to be of ancient origin. Some say they have been around for thousands of years, used in Mesopotamian and Ancient Egyptian cultures. There has also has been some debate that they actually originated in Europe and were brought to the Middle East by nomadic Celtic tribes.

Its thin, responsive drumhead and resonance help it produce a distinctively crisp sound. Traditionally, goblet drums may be made of clay, metal, or wood. Modern goblet drums are also sometimes made of synthetic materials, including fiberglass. Modern metal drums are commonly made of aluminum (either cast, spun, or formed from a sheet) or copper. Some aluminum drums may have a mother-of-pearl inlay, which is purely decorative. Traditional drum heads were animal skin, commonly goat and also fish. Modern drums commonly use synthetic materials for drum heads, including mylar and fiberglass.

Mohammad Esmaili (Persian: محمد اسماعیلی‎; b. 1934, Tehran) is an Iranian percussionist. He grew up in a musical family, which included his uncles Morteza Goreenzadeh and Musttappha Goreenzadeh, trumpet and clarinet players. From an early age, Mohammad was impressed by the "father of modern tombak", Hossein Tehrani, which attracted him to this field as a tombak player.

Mohammad Esmaili was tombak accompanist in some of the music ensembles of the time and later joined the tombak players ensemble of the General Bureau of the Fine Arts of Iran, which was organized and formed by Hossein Tehrani. Mohammad Esmaili joined the National High School of Music in 1964 as a tombak instructor. He was later appointed director of the tombak department. He trained and taught numerous students using the Amozesh Tombak (Persian: آموزش تنبك‎) (Rudiments of Tombak) exercise book written by Tehrani.

In 1966, he was promoted to director to the tombak department of the Ministry of Culture and Art, a position he held until the Islamic Revolution of Iran in 1979.