In November 2016 he organized the “First International Harmonica Festival of Rosario” where he shared stage with one of the most prestigious harmonica player worldwide, the master Lee Oskar, giving a harmonica clinic and a show in a crowded theater.
This was the beginning of a tour, in which he joined Lee Oskar around the country, visiting the cities of Rosario, Córdoba and Buenos Aires, giving clinics, workshops and shows together. During this journey, Martín Chemes was named by Lee Oskar himself as the Lee OskarHarmonicas ® Ambassador in Argentina.