As a chamber musician he has performed with musicians of high calibre such as Albrecht Mayer, Sabine Meyer, Daniel Rowland, Gustav Rivinius, Elsbeth Moser and Wolfgang Güttler, while numerous solo concerts and appearances in chamber music ensembles have brought him in important venues throughout Germany, Europe and China. From 2012 until 2018 Endri was a founding member and pianist of Flex Ensemble with whom he won several top prizes at prestigious international chamber music competitions such as the first prize at the International Robert Schumann chamber music competition in Frankfurt and the first prize at the Gianni Bergamo Classical Music Award in Lugano. With Flex Ensemble he has performed in venues such as the Concertgebouw Amsterdam, the Alte Oper Frankfurt, the Beijing Performing Arts Center and the Meistersingerhalle Nürnberg.
As a soloist he has performed with the Baden-Baden Philharmonic Orchestra, the Symphonic Orchestra of the Albanian Radio and Television, the Karlsruhe Chamber Orchestra and the Tirana Chamber Orchestra. His recordings include two CDs with Flex Ensemble „The Arrival of Night” and „Au Suivant!“ (for music labels Genuin and Avi) as well as recordings for radios like SWR, NDR, Radio Tirana, Radio 4 Amsterdam and Radio Semnoz in France. He also appeared in Festivals such the Sommerliche Musiktage Hitzacker, Heidelberger Frühling, the Festspiele Mecklenburg-Vorpommen, Annecy Festival, Prussia Cove, International Music Festival Goslar, the Pristina International Music Festival, Allegretto Albania and the Podium Festival Esslingen.
Endri also frequently curates multidisciplinary concert formats as an effective way of bringing together different audiences and music.
Since 2014 he has been regularly creating programmes and performing at events with musicians, dancers, actors and visual artists at the Chamber Music Fest Rheinhesen, the concert series imPULS in Hanover as well as the Project Wunderkind in Albania.
In 2020 he was the Artistic Director of the Chamber Music Festival „Happy Birthday Mr. Beethoven!” of the University of Music and Drama in Rostock and in November 2021 he will organize the next Edition of the same Festival under the motto “When the hours stood still”.