ARTIST: Dahka BandGIG: Wednesday at The Iridium The mighty-sounding Dahka Band is based in New York but its members are from Nigeria, Algeria, and Turkey – which means any given song can feature lyrics in Yoruba, Arabic, Turkish, or English. Whatever the language, the undeniably catchy and taut musicianship speaks for itself, as on the song “Hal Denya” – a spiritual call-out and a bouncy dance number wrapped into one.