‘Spectacular examples across the board: mesmeric guitar playing in the Barotse style, which uses tunings from the local thumb-piano tradition; kangombia thumb-piano music; rollicking drum ensembles; and jaw-dropping performances of siyemboka, Barotseland’s national music, played on silimba — giant wooden xylophones, sometimes five metres in length, played by four or five men at once’ (The Wire).