Converter System writing and isobematic language in Christopher Bochmann's ESSAY XVIII

Christopher Bochmann, one of the most prominent composers and pedagogues of our time, is the only composer in Portugal, at this moment, to include in his catalogue 4 works that integrate the Accordion in the midst of contemporary music. Using isobematic language as a starting point and form of expression, Bochmann composed for Solo Accordion, Accordion in Chamber Music, Accordion in Ensemble and Concert for Accordion and Orchestra. In this article, we are going to investigate the work Es-say XVIII and how the composer organizes the form, structures the musical ideas and builds the idiomatic writing for Accordion using the converter system.