Stepwise is a traditional Celtic folk band consisting of Liam Lewis (mandolin, guitar, fiddle, voice), Olivia Breidenthal (fiddle and voice) and All-Ireland Champion bones player James Yoshizawa (percussion).

They perform a mixture of traditional Irish songs with tight vocal harmonies and traditional Irish tune sets. Olivia is a practitioner of the Galway fiddle style with influences including Kevin Burke, the Kane Sisters, and Liz Carroll.

Together, their instrumental arrangements feature intricate twin fiddles or groovy rhythm guitar fit for a traditional Ceili or the discerning ears of an Irish-enthusiast audience.