« Fantastic, excellent performance...

You really feel the same when you play together! »

Composer Wolfgang Rihm | Théâtre Royal de la Monnaie, 2015

DUO ROSA emerged in 2014 thanks to a wonderful friendship and meeting of musical minds between soprano Stephany Ortega and pianist Léna Kollmeier when they were studying at the Royal Conservatory of Brussels. Due to their comprehensive training in classical and modern music, they are able to approach traditional repertoire with ease, while tackling the challenges of contemporary music and exploring several world music styles. The key of their success: the magical blend between classical and popular music!

In 2016, the duo released their first album «Return» (Et’cetera Records), a musical journey from Europe to Latin America: the disc was hailed by the international press. They followed up on their release with a promotional tour across 18 cities in Europe, the United States and the Caribbean, notably performing at Carnegie Hall in New York, La Monnaie in Brussels, El Ateneo in Madrid, the Philharmonie Luxembourg, the Biermans-Lapôtre Foundation in Paris and the Palacio de Bellas Artes in Santo Domingo.

In 2019, the duo released their second album «American Soul : from Broadway to Paris» (Hänssler Classic) featuring art songs, Broadway melodies and cabaret tunes, and began their new international tour.


Recently, this album has been nominated by the International Classical Music Awards (ICMA) 2020 which represents a great achievement in their young career.

Currently, the duo continues their American Soul Tour that already took them to England, Belgium, Luxembourg and the Dominican Republic. 


Stephany Ortegacoloratura soprano, was born in the Dominican Republic and has also obtained Luxembourg citizenship by naturalization. Her repertoire ranges from Baroque to contemporary music including opera, Lied, world music and musical theater. Very active internationally, she has performed throughout China, Europe, the US, and the Caribbean with the Luxembourg Philharmonic Orchestra, the Symphonic Orchestra of the Dominican Republic, the contemporary ensemble United Instruments of Lucilin and the Royal Symphonic Band of the Belgian Guides, among others.

She has been granted several awards such as the Silver Prize at the Manhattan International Music Competition in New York; the Servais Prize by the Belgian Ministry of Culture; the Vindelink and Lerminiaux Prizes attributed by the Brussels Conservatoire; two nominations as an « Artist who excels abroad » by the Soberano Awards, and two more nominations by the Dominican Emigrant Prize Oscar de la Renta. On the other hand, the publishing house Maison Moderne honored her with the title of « Cultural Ambassador of Luxembourg ».

Stephany Ortega graduated with honors and holds a Master of Arts in voice from Brussels Conservatoire. She has obtained various diplomas in singing, piano, and jazz dance at the Luxembourg Conservatoire, and a Bachelor in music from the Autonomous University of Santo Domingo. Currently, she lives between China and Luxembourg.


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Léna Kollmeier, Belgian pianist, mastered her instrument remarkably well at an early age. This naturally led her to being accepted as a young talent by Liège Conservatoire, at the age of 15. She obtained her Master of Arts in piano with honours from Brussels Conservatoire after having studied with teachers such as Daniel Blumenthal, Pierre Thomas and Etienne Rappe. She has also actively participated masterclasses taught by Dominique Cornil, Natacha Zdobnova, Dana Protopopescu and Boyan Vodenitcharov.

At the age of 17, she won First Prize at the Dexia Classics Competition and performed a recital in the Théâtre Royal de la Monnaie in Brussels which marked the beginning of her career. She soon had the pleasure of performing with various orchestras, and has appeared as a soloist and chamber music specialist on the international stage – namely in Europe, the US, Thailand and the Caribbean.

Also a passionate defender of contemporary repertoire, Léna Kollmeier co-founded Trio O3 which recently won the «Supernova » competition and allowed them to go on tour to several Belgian festivals and concert halls, especially Flagey in Brussels and the Palais des Beaux-Arts in Charleroi. Léna also has a piano duo with her sister Louise Kollmeier. In 2019, the Kollmeier Sisters won a second prize at the international competition « Grand Prize Virtuoso » and performed at the Concertgebouw in Amsterdam for the occasion.


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