Klaas-Jan de Groot (b. 1993) started his musical path at a young age, as a boy soprano in the Kampen Boys Choir. After his studies at the Royal Conservatoire in The Hague (NL) and the Royal Welsh College of Music & Drama (UK) he started to work as a professional conductor and chorus master.
Klaas-Jan has been assistant chorus master at Dutch National Opera since 2016. He has assisted on numerous productions, amongst others the big operas by Verdi, Puccini and Wagner. With the chorus of DNO he has also been chorus master for various opera productions and other choral projects.
As guest chorus master, Klaas-Jan has prepared the Netherlands Radio Chorus (Groot Omroepkoor) for performances of Nabucco, Semiramide, Il piccolo Marat, Jenufa and Fedora in the Concertgebouw in Amsterdam. He also prepared the chorus for a recording of Schaduwen over Atlantis by Karel Mengelberg.
In the summers of 2018, 2019 and 2021 Klaas-Jan worked as assistant chorus master at the Bayreuther Festspiele on all Wagner operas except for the Ring.
With the Orchestra of the 18th century Klaas-Jan was assistant conductor for semi-staged performances of Don Giovanni (2019) and Der Schauspieldirektor (2021). Of the latter he also conducted one performance in the concert hall in Zwolle.
At Opera Zuid (Maastricht) Klaas-Jan has worked on many productions as chorus master and assistant conductor. Here he also conducted several performances (Un ballo in maschera and Fantasio) with the orchestra of Philharmonie Zuid-Nederland.
In 2020-2021 Klaas-Jan prepared the Rotterdam Symphony Chorus for two livestreams of Beethoven IX and Bach’s Matthäus Passion.
In 2021 Klaas-Jan was awarded the prestigious conducting prize (€15.000) from the Anton Kersjesfonds, as a bursary to further support his development and career.