While participating in the Orlando Festival in Kerkrade, in 1990, they were noticed by Earl Carlyss, former member of the Julliard String Quartet, who invited them to participate in the Aspen Festival, in 1990, and offered them a grant for the Aspen Center for Advanced Quartet Studies. This was a most beneficial opportunity for the young musicians to work with the Emerson String Quartet, American String Quartet, Steve Clapp and Donald Weilerstein, former member of the Cleveland String Quartet. 

The Transylvanian String Quartet has toured in Romania and abroad – Italy, Germany, The Netherlands, Spain, Austria, Denmark, USA, Great Britain, Finland. They appeared in prestigious festivals, such as the Aspen Music Festival, Ravinia Festival, events in Aldeburgh, Bath, Edinburgh, Belfast, Kuhmo, Bad Gleichenberg, Salzburg, Chemnitz, Salamanca, Eche-sur-Alzette, Aix-en-Provence, and in famous venues, such as Wigmore Hall (London), Pleyel (paris), Queens Hall (Edinburgh), Snape Maltings Concert Hall (Aldeburgh), Wheeler Hall (Aspen), Mandel Hall (Chicago), Wilshire Ebel Theatre (Los Angeles), Elmwood Hall (Belfast), Conservatoire royal de Bruxelles.

Among the artists who joined them on stage on chamber music concerts there are Rudolf Firkušný, Michel Bourdoncle, Rita Sloan, Erik Friedman, Luz Leskowitz, Sharon Bezaly, Jeremy Menuhin, Vladimir Mendelssohn, Dejan Lazic, Götz Teutsch, János Bálint, Ştefan Ruha, Valentin Gheorghiu, Dan Grigore, Marin Cazacu, Dana Borşan, Aurel Marc, Adriana Bera, Daniel Goiţi, Mihai Ungureanu, Mirel Iancovici, Sherban Lupu, Aurelian Octav Popa, Cristina Anghelescu.

The repertoire of the Transylvania State Quartet includes famous classic, romantic and contemporary composers such as Haydn, Mozart, Beethoven, Schubert, Schumann, Verdi, Brahms, Chausson, Smetana, Dvořák, Stravinsky, Bártok, Shostakovich, as well as the Romanians George Enescu, Pascal Bentoiu, Theodor Rogalski, Theodor Grigoriu, Hans Peter Türk, Adrian Pop, Şerban Nichifor.