Wiebe-Pier Cnossen graduated from the jazz department at the Royal Conservatoire in The Hague in 1998 and continued his studies at the classical department of the same conservatory, where he graduated in 2001. In 2003 he graduated summa cum laude from the master’s degree programme in opera at the Dutch National Opera Academy, singing the role of Papageno (Die Zauberflöte). He took masterclasses with Christina Deutekom, John Bröcheler, Rudolf Jansen, Mark Tucker, Ian Bostridge and others.
He performed as a soloist with opera companies and orchestras such as De Nationale Reisopera, Opera Trionfo, the Residentie Orkest, the Doelen Ensemble, the Nederlands Blazers Ensemble, Nationaal Toneel, Holland Opera and at various festivals in Germnay, France and the Netehrlands. He sang the roles of Count Almaviva and Figaro in Le nozze di Figaro (Mozart), Masetto in Don Giovanni (Mozart), Escamilio in Carmen (Bizet), Don Parmenione in L’occasione fa il ladro (Rossini), Uberto in La Serva Padrona (Pergolesi), Plutone/Caronte in L’Orfeo (Monteverdi) and Bardolfo in Falstaff (Salieri).