The Bullroarer Atlas
All regions

The fathers must be kept and fed

Benue valley and Adamawa

Harvest houses, returning ancestors and the craft boys learn

Engraved chart of the places where the Benue valley and Adamawa records were made, with a dashed outline drawn round them
Where this tradition has been recorded — open on the map

From Idoma and Tiv country on the Benue in Nigeria to the Verre, Koma, Chamba, Dakka, Dii and Mboum of the Adamawa uplands on the Cameroon border, whirled sound opens the harvest, feeds the dead fathers and guards the circumcision camp. Roarers are buried under a ritual leader’s arms and dug up with his skull, and boys whirl a school ruler beside the ancestors’ plaque.

A long rough iron Koma rhombe with an irregular notched head and a round hole near that end.
KomaKoma iron rhombe, 16 cm, notched and pierced at the head (Quai Branly 71.1991.60.53).
Drawing of two long narrow Tschamba langa, one broad tapered wooden blade and one straight-sided iron blade, with cords at their tops.
Samba (Tschamba / Chamba; Samba Leko)Two Tschamba langa, 21 cm wood and 15.5 cm iron, drawn for Frobenius's 1913 volume.
Two Dakka langa, 27 and 19.5 cm, wood, drawn for Frobenius's 1913 volume.
Sama (Dakka / Samba Daka; Sama Mum)Two Dakka langa, 27 and 19.5 cm, wood, drawn for Frobenius's 1913 volume.

Sources

  1. Leo Frobenius, Dichten und Denken im Sudan (1925) · archived

    Atlantis 5, pp.12–15: Tschamba school; pp.42–45,54–55,67: Dakka shrine, material distinction and harvest; pp.120–123: Bokko household shrine and skull; pp.150–151: Mbum comparison.

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  2. Françoise Dumas-Champion, Pouvoir et amertume du fétiche (1987)

    Systèmes de pensée en Afrique noire 8:141–176, pp.143–149: Koma groups, graded knowledge and stations; pp.152–154: blade families and seasonal horn/blade distinction; pp.160–161: consecration.

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  3. Françoise Dumas-Champion, Le mort circoncis (1989)

    Systèmes de pensée en Afrique noire 9:33–74, pp.41–46: Koma funeral stages; pp.50–51 and n.24: voma/jubi/vome, Koma blade burial, Yambu trumpet/stone and Daka bells.

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  4. Edmond Dounias, L’élevage du taurin chez les Koma gɨ́mbē des monts Alantika (1998) · archived

    In Des taurins et des hommes (1998), p.202 n.9 and p.208 n.12: Koma gɨ́mbē protective ancestral roarers and the rhombe-beer of the bull feast.

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  5. Chappel, Fardon and Piepel, 'Surviving Works: context in Verre arts,' Vestiges 7(1) (2021), ch. 1.1, ch. 1.3 and glossary (app. 3) | Chappel, Fardon and Piepel 2021, pp. 72–74 and 81–82: Yakubu’s account of Bus Kabili medicine acquisition from zam, whose testing children include snakes; explicit Do’os harvest-cycle institutional context. Original pages inspected 2026-10-17. · archived

    Chappel, Fardon, and Piepel 2021 ch. 1.1, ch. 1.3, glossary app. 3; earlier attestation at Meek 1931 vol. I p. 434; Chappel, Fardon and Piepel 2021 pp. 72–74, 81–82

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  6. Tomas Sundnes Drønen, Communication and Conversion in Northern Cameroon (Leiden: Brill, 2009), pp. 125 n. 27, 127–128, 131 | Jean-Claude Muller, Les rites initiatiques des Dìì de l'Adamaoua (2002), p. 100 | Jean-Claude Muller, Les chefferies dii de l'Adamaoua (2006), introduction | University Museum of Bergen, E 7772 · archived

    Dronen 2009, pp. 127-128, 131 (and p. 125 n. 27) | Bergen UMUIB-F photo record 0210112461933; accession card E 7772 in frame

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  7. Froelich 1959, p. 110; Leo Frobenius, Dichten und Denken im Sudan (1925), pp. 148 and 150-151 · archived

    p. 110 | Frobenius 1925:148, 150–151

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  8. Phillips Stevens Jr., "The Danubi Ancestral Shrine," African Arts 10, no. 1 (October 1976): 30-37, at p. 32

    p. 32

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  9. Roger Blench, 'Idoma musical instruments,' African Music 6(4) (1987): 42-52, at p. 49 (section IV, free aerophones) · archived

    printed p. 49 (running head 'IDOMA MUSICAL INSTRUMENTS 49' on a genuinely paginated PDF, rendered and read)

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  10. Leo Frobenius, Volksdichtungen aus Oberguinea I: Fabuleien dreier Völker (Atlantis XI; Jena: Eugen Diederichs, 1924), p. 265. · archived

    p. 265

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  11. Pitt Rivers Museum, Oxford, acc. 1933.29.22 · archived

    1933.29.22

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  12. Musée du quai Branly – Jacques Chirac, 71.1931.74.2654 (Musée de l'Homme 31.74.2654); made by Maunde and obtained at Garoua by the Mission Dakar-Djibouti on 30 January 1932 · archived

    object 71.1931.74.2654; acquired 30 January 1932

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