Grégoire Maret at Mercyhurst University Published 26 January, 2013 By John Chacona Jazz harmonica player Grégoire Maret comes to Mercyhurst Erie Times-News ShowCase, 17 January, 2013 Categories:Newspaper Previews Previous Post Violinist Adé Williams with the Erie Chamber Orchestra Next Post Inon Barnatan with the Erie Philharmonic Orchestra