Percussionist Andi Pupato joined the band 2002-2012). Ronin's music consistently follows the same aesthetic vision under various instrumental guises: creating the maximum effect by minimal means.

Despite the multiplicity of the band’s influences, Ronin’s music always possesses a strong individuality. They incorporate elements of disparate musical worlds, be they funk, new classical music or sounds from Japanese ritual music.

However, these forms are never merely juxtaposed in a post-modernist fashion but instead amalgamated into a coherent new style. Ultimately, these sounds and rhythms are highly idiosyncratic. The music consists of very few phrases and motives, continually combined and layered in new ways. Ronin thus creates a consistent aesthetic across all levels of musical expression. Composition, phrasing, sound structure, performance, and musical form all combine to form a system of interrelated elements. (Michel Mettler)