COMPARATIVE STRUCTURAL ANALYSIS OF UDJE AND IGORU: RHYTHM, SCALE AND SOCIAL FUNCTION IN URHOBO MUSICOLOGY

Abstract

This paper provides a comparative analysis of Udje and Igoru, two foundational performance genres among the Urhobo and Okpe peoples of Nigeria's Niger Delta. While ethnomusicological scholarship has long attended to the poetic, political, and thematic richness of Urhobo oral traditions, the formal structural distinctions between these genres have received comparatively little systematic attention. Drawing on a dual framework of linguistic tonal mapping and organological classification, this study interrogates the structural architecture underpinning both genres. The analysis reveals that Udje is characterised by a dense, terrestrial, polyrhythmic framework designed for adversarial social commentary, moral censure, and inter-community rivalry. Igoru, by contrast, exhibits a more fluid, mid-tempo, syncopated structure that facilitates reflective storytelling, praise singing, and the promotion of collective social cohesion. Through a detailed examination of scalar systems, metric organisation, vocal production, instrumental timelines, and kinesthetic expression, the paper develops a comparative model for understanding Urhobo and Okpe musical thought. This structural approach contributes to broader debates in sub-Saharan ethnomusicology and offers practical strategies for documenting, teaching, and revitalising Urhobo sonic heritage in the face of rapid cultural change.