Having wandered throughout Europe´s musical culture she feels home in many areas of that heritage. She played chamber music with the "Berwald Klaviertrio", she played in many well known orchestras such as the Stockholm Radio Orchestra and she worked together with very gifted individuals such as Herbert von Karajan, Sergiu Celibidache and Esa-Pekka Salonen. As solocellist she convinced in festivals such as in Sazburg, Schleswig Holstein and in the Swedish Musik i Siljan.
In her various concerts she favours to present contemporary music from her rich repertoire. Working together with the famous Scandinavian composers Teppo Hauta-Aho and Hans Abrahamsen has been a valuable source of inspiration to her.
Her CD recordings and her own performances with a special focus on Scandinavian music make her to one of the most successful Swedish cellists in Europe today.
Ulla Rönnborg plays a Cello made by Roger Hargrave and a bow by Klaus Grünke.