Searching for the exact string "mattheos_band_kokoras_mori_trelli" does not yield a specific track under that precise name. This appears to be a mixed-up or highly specific custom file name combining various elements:
likely refers to the backing band of the prolific Greek island music artist Mattheos Giannoulis . Kokoras is his iconic live performance track. mattheos_band_kokoras_mori_trelli
is the actual artist associated with the famous traditional Greek island song (Nisiotika) titled "O Kokoras" (The Rooster). mattheos_band_kokoras_mori_trelli
Mattheos Giannoulis (Ματθαίος Γιαννούλης) Song Title: O Kokoras (Ο Κόκορας) Album: Nisiotika Kai Kritika Tragoudia (Live) mattheos_band_kokoras_mori_trelli