Ichaka

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Ichaka

Other names	Ichake, Ishaka, Ukwusa, Osha
Classification	Idiophone, rattle
Hornbostel–Sachs classification	112.13 (Vessel rattles)
Developed	Igboland, southeastern Nigeria

The Ichaka (also spelled ichake or ishaka;^[1] also known as ukwusa or osha in some dialects) is a gourd rattle of the Igbo people of southeastern Nigeria. It consists of a dried gourd covered with a net of beads on the outside. When shaken or tapped, the beads strike the gourd surface and produce a dry rattling sound. The instrument is classified as an idiophone.

The Ichaka originates among the Igbo people of Nigeria.

The instrument is held by the gourd neck and shaken in rhythmic patterns. Players also tap the gourd body with the free hand to produce sharper accents, or tilt the instrument slowly to create a softer sustained sound.

The ichaka provides rhythmic texture rather than melodic content. In Egwu Ogene ensembles, the ichaka player typically reduces volume during quieter sections and plays more fully during louder passages, in coordination with the igba drummer.^[2]

Lo-Bamijoko (1987) lists the ichaka among the core instruments of Igbo musical culture alongside the ogene (iron bell), ekwe (wooden slit drum), igba (cylindrical drum), udu (clay pot drum), and ọjà (wooden flute).^[3]

The instrument appears in Egwu Ogene, the ogene ensemble tradition of northern Igboland, and in Ekpili, a folk genre of southeastern Igboland in which it is played alongside the ubo (thumb piano). Okeke (2014) identifies the ichaka as one of several Igbo traditional instruments used as non-verbal communication devices in cultural ceremonies.^[4]

In Igbo highlife, the blending of the ichaka with guitar became part of the genre's characteristic sound from the mid-twentieth century onward.^[5]

The Ichaka is played at naming ceremonies, second burial celebrations (ọnọ), masquerade festivals, the New Yam Festival (Iri ji), and chieftaincy installations. Ichaka is used as a means of communication in Igboland, such as announcing the birth of a child. According to one study, women carry and play the instrument while singing and dancing as they gather at the home of the new mother, using its sound to notify other women in the community of the birth ^[6]. It accompanies masquerade appearances at community festivals. Lo-Bamijoko notes it is also played recreationally and is accessible to children learning percussion.^[7]