Horn of Africa (Ethiopia: 96.6 million, Somalia: 10.4 million, Eritrea: 6.4 million, and Djibouti: 0.81 million). Regional studies on the Horn of Africa are carried out, among others, in the fields of Ethiopian Studies as well as Somali Studies. This peninsula is known by various names. In ancient and medieval times, the Horn of Africa was referred to as the "Bilad al Barbar" ("Land of the Berbers"). It is also known as the "Somali peninsula", or in the Somali language, "Geeska Afrika", "Jasiiradda Soomaali" or "Gacandhulka Soomaali". In other languages that are local or adjacent to the Horn of Africa, it is known
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