In Basel, Harmuch is followed by Colonna

Deda Cristina Colonna studied ballet at the Civico Istituto Musicale Brera (Novara) and at the École Supérieure d'Etudes Chorégraphiques (Paris). She completed her training at the Sorbonne (Paris), specializing in Renaissance and Baroque dance. She also graduated from the drama school of the Teatro Stabile di Genova and performed in productions in Italy, France and Germany. She was a soloist and guest choreographer with the New York Baroque Dance Company. Since 2021 she has been the director of the Accademia G. Marziali dance school in Seveso.

She has been teaching gesture at the Schola Cantorum Basiliensis since 2021. Her most recent productions include Rameau's Castor et Pollux (Warszawska Opera Kameralna, 2021), for which she was awarded the 2022 Jan Kiepura Prize for Best Director, Bartok's Duke Bluebeard's Castle (Teatro Coccia, Novara / Teatro G.B. Pergolesi, Jesi 2021) and Vivaldi's Juditha Triumphans (Teatro Verdi Pisa, Teatro Ponchielli Cremona 2023). She also took part in the opera project Muzio Scevola of the Schola Cantorum Basiliensis in April 2023.