Irish bouzouki
The Irish bouzouki (Irish: búsúcaí) is an adaptation of the Greek bouzouki (Greek: μπουζούκι). The newer Greek tetrachordo bouzouki (4 courses of strings) was introduced into Irish traditional music in the mid-1960s by Johnny Moynihan of the folk group Sweeney's Men, who retuned it from its traditional Greek tuning C³F³A³D⁴ to G²D³A³D⁴, a tuning he had pioneered previously on the mandolin.