Mehter is the world's first and oldest Turkish army band.
The name of the military harmonica school, which was called Tuğ in the time of the Huns and consisted of percussion instruments and wind instruments, was named after Fatih, the purpose of military music, which has been an indispensable element of the Turkish war technique since the Huns, with the sound of a foreign chronicler like a thunder that is heard from far away and approaching. It is to demoralize the enemy and not leave the strength to fight, to end the war as soon as possible by capturing the enemy, and thus, in a way, to prevent human slaughter.
Mehter, the oldest military band in the world, is first encountered in the Orkhon Inscriptions. The military band, which is described as "Kübürge" and "Tuğ" in these inscriptions, YY. In Divan-ü Lügat-it Türk, it is told that he made music in the presence of the Hakans. At that time, "Tuğ", consisting of instruments called küvrük (kös), log (drum), çenk (zil) and nay-i Türkî, were playing music in wars and on special occasions. In addition, "Tuğ" became a symbol of dominance among Turks.
In this institution, which the Seljuks called T'abilhâne or Nevbet hane, six basic instruments, two of which were woodwind and four of which were percussion, had taken place since the Huns: After Islam, their names were zurna, horn (nefir or şahnay), çevgan, zil, drum and kos, yurağ, boygur, collapsing, bell, tumour, and kürük. The music to be played by hundreds of percussion and wind instruments such as kös, drum, nakkare, cymbal, çevgan, Çalpara, çengi harbi, zurna and pipe, which went in front of the army in the war, was specially composed for the purposes of war, ceremony and play (sports).

It passed to the Ottoman Empire from the Anatolian Seljuk Turks. Namely, the Principality founded by Osman Gazi; He won many wars against the Byzantines and expanded his territory. As a result of these wars, Osman Gazi showed his usefulness to the Seljuk ruler Aladdin Keykubat and sent some of the war booty he won in these wars as a gift to the Seljuk Ruler. In the meantime, he enlarged the İnegöl castle by besieging it and adding it to his principality. The Anatolian Seljuk Ruler, who was very pleased with these events, congratulated himself by sending an edict to Osman Gazi in 1284 by means of KARA BALABAN ÇAVUŞ, and Tuğ, Alem Tabıl (DAVUL) who is considered the symbol of Independence (Sovereignty) with the Emirate rank, in the representation of Nakkare (ÇİFTENARA) Justice and Justice. He sent a (WHITE) color banner. The first mehter nevbet (CONCERT), which was called TABLI ALI'i OSMAN by the Ottomans, was in 1289, in the large Mescit square of willow, a town of Bilecik, in the presence of Osman Gazi and his comrades in the presence of an afternoon sermon (CONCERT), which will provide great services to the Ottomans at the property and during the expedition. Mehter team is established.
This nevbet (CONCERT) listened to by Osman Gazi and his comrades is due to the respect they showed to the Seljuk ruler. This custom continued by the Sultans after Osman Gazi.