- 51 viewsJEFF: Samburu’s music industry is mourning the death of Douglas Mukavi, popularly known as Koch Doer, a celebrated music producer whose influence helped shape the region’s musical identity and nurture a generation of emerging artists. OLIVE: From pioneering the distinctive Nkuluut sound to producing a rich catalogue of cultural, secular and gospel hits, Koch Doer leaves behind a musical legacy that will continue to resonate across Samburu and beyond.