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Biographies & programs



Isabelle Osenau


First Round

Alfonso Gonzalez Martinez


Participants Duo 2024.jpg


Franz Schubert

Auf dem See D 543 (Goethe)  - 1R

Im Frühling D 882  (Goethe)

Ludwig v. Beethoven

Vier Arietten und ein Duett, Op. 82 

4. L’amante impaziente (Metastasio)   - 1R

Goacchino Rossini

Péchés de vieillesse

Ariette ancienne ("Que le jour me dure!") (Jean J. Rousseau) - 1R

Henri Duparc

Extase (Lahor)

Emile Paladilhe

Psyché (Corneille)

Roger Quilter

Three Shakespeare Songs, Op.6

1. Come Away, Death 

3. Blow, Blow, Thou Winter Wind  

Gerald Finzi

Let us Garlands Bring" Op. 18 (Shakespeare)

1. Come Away, Come Away, Death 

3. Fear no more the heat o’ the sun  - 1R

5. It Was a Lover and His Lass  

Erich W. Korngold

Four Shakespeare Songs, Op.31 

1. Desdemona's song 

2. Under the greenwood tree 

3. Blow, blow, thou winter wind


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Isabelle Osenau


Year of birth:


Isabelle Osenau, born in Cologne, began her musical career at the age of  6 on the piano. Taught by the Russian concert pianist Tatiana Kozlova,  she began performing at an early age. In the following years she won  prizes in several renowned piano competitions within Germany and other  European countries.
After graduating from high school and initially studying cultural  studies in the Netherlands, classical singing became her primary musical  interest. She then began her singing studies at the Rotterdam  Conservatory, where she studied with Marcel Reijans and Charlotte  Riedijk and completed her master's degree with honors in 2022. During  her studies she was seen in various university opera productions,  including Sesto in Handel's "Giulio Cesare" and Aminta in Mozart's "Il  re pastore". She took master classes with Margreet Honig in the  Netherlands and Claudis Visca in Austria. In addition, together with the  Spanish pianist Alfonso González Martínez, she won the university's  internal competition “Prix d'Harmonie” with a song program that deals  with the setting of Shakespeare.
After completing her studies, she embarked on a career path as an opera  choir singer, which first took her to the Cologne Opera. From the 23/24  season she is a permanent member of the opera choir of the Staatstheater  Cottbus, where she also takes on solo roles, most recently as the noble  orphan in “Rosenkavalier” and as Princess Linetta in Prokofiev’s “The  Love of Three Oranges”.

Alfonso Gonzalez Martinez


Alfonso Gonzalez Martinez, born in Noia (Spain), completed his  bachelor's degree in piano solo at the Castilla y León Conservatory in  Salamanca, where he studied primarily with Patrín García Barredo. He  then obtained his master's degree at the Utrecht Conservatory  (Netherlands) in the class of Klara Würtz. He completed further studies  with Alexander Gold in Santiago de Compostela and with Stephane de May  in Rotterdam. During his master's studies, he also joined the Institute  for Early Music and developed his skills on the harpsichord there.
During his career he has performed at various festivals across Europe,  including the “Festival internacional de Jovens Pianists”  (Amarante-Portugal), “Músicas desnudas” (Madrid) and “Ciclo de novos  intérpretes 2016 da Asociación Galega da Lírica” (Santiago de  Compostela). Much of his work is also dedicated to the performance of  contemporary music. He worked with conductors such as Oscar Colomina i  Bosch, Kevin John Edusei and Javier Castro. He is a frequent guest of  the Orquesta de RadioTelevisión Española in Madrid, where, among other  things, he performed A. Schönberg's “Pierrot Lunaire” in collaboration  with its soloists.
In 2023 his first CD “In Honor of Horák” was released in collaboration  with the Japanese clarinetist Ken Kunita, which is dedicated to the bass  clarinet repertoire.
For several years he has been a permanent accompanist at the National  Ballet Academy in Amsterdam and at the European School of Ballet.
In the field of chamber music, he forms the four-hand piano duo  “NamasDuo” together with the Greek pianist Myrto Tzelisi. As a song  accompanist, he regularly works with the Canadian-Dutch soprano Karin  Timmermanns and the German mezzo-soprano Isabelle Osenau.

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