Horn of Africa Himyarite Kingdom. Under Ezana (fl. 320–360), the kingdom of Aksum became the first major empire to adopt Christianity, and was named by Mani as one of the four great powers of his time, along with Persia, Rome and China. Northern Somalia was an important link in the Horn, connecting the region's commerce with the rest of the ancient world. Somali sailors and merchants were the main suppliers of frankincense, myrrh and spices, all of which were valuable luxuries to the Ancient Egyptians, Phoenicians, Mycenaeans, Babylonians and Romans. The Romans consequently began to refer to the region as "Regio Aromatica". In
Natural horn for natural horn. Benjamin Britten's "Serenade for Tenor, Horn and Strings", though written for the modern horn, makes notable use of the F harmonic series and has been recorded at least once on a natural horn. György Ligeti's "Hamburg Concerto" makes a great use of the natural horn and of natural sounds on the modern horn in the solo part and requires four natural horns in the orchestra. Below lists natural horn keys with their corresponding fingering on the modern horn. If a piece of music says the key on the left you can press the key combination on the