
At the same time, since the age of 16, she has pursued an intense performing career, exploring various genres and styles. From Baroque music on period instruments to contemporary compositions, from tango to free improvisation in theatrical performances, in chamber music as well as solo, she favors the road less traveled, such as the works for cello and clarinet ensemble dedicated to her by Hardy Mertens, or Rodeo for cello and saxophone (also dedicated to Cristina by Garth Laurence), and does not hesitate to commission original works (for example, Design Five: Double Trouble for alto saxophone and cello, commissioned from composer Patricia Morehead)
Cristina Bellu has been teaching cello at the Conservatoire à Rayonnement Départemental de Mulhouse since 1999 and cello pedagogy at the Haute École de Vaud-Valais-Fribourg (since 2010), after teaching the same subject at the Haute École de Lugano (from 2008 to 2024).
Her teaching is also inspired by the research projects she has conducted and continues to conduct in the field of instrumental teaching, particularly in neuro-motricity (Swiss National Science Foundation grant) and performance teaching (doctoral thesis in education sciences, University of Geneva).
Cristina plays a cello by Oreste Martini for modern music and a cello by Dino Filippi for early music.