The chorus celebrates the fertile lands of Mugan, Mil, and Shirvan, describing Azerbaijan as a joyful, flowering land.
The song you are referring to is titled (Merry Azerbaijan), a famous patriotic piece written in 1970. It is composed by the renowned Azerbaijani artist Polad Bülbüloğlu with lyrics by Məstan Günər (for the Azerbaijani version). The chorus celebrates the fertile lands of Mugan,
Qoy mən yenə söhbət açım ilk baharımdan,Nəğməm ilə bir də keçim öz diyarımdan. Polad Bülbüloğlu – Şən Azərbaycan Lyrics - Genius
The lyrics continue to praise the natural beauty of the region, specifically highlighting places like Göygöl, the Caspian Sea, Ganja, and Karabakh, expressing deep love for the homeland. For the full lyrics, you can refer to Wikipedia . Polad Bülbüloğlu – Şən Azərbaycan Lyrics - Genius and Polad Bülbüloğlu himself. Lyrics (Sözləri)
The song is celebrated for its rhythmic, joyful nature, traditionally written in the style with a 6/8 dance beat. It has been performed by legendary singers including Shovkat Alakbarova , Muslim Magomayev , and Polad Bülbüloğlu himself. Lyrics (Sözləri)