The Caecilia-Concert is a versatile international ensemble specialising in performance and research of 17th century music. The group was formed in 2001 by four young instrumentalists working at the forefront of authentic performance practice in Europe and has a distinct, unique sound and a range of virtuosic and expressive capabilities not often associated with such instruments or repertoire. Since its formation, Caecilia-Concert has given highly acclaimed concerts at festivals in France, Switzerland, Austria, The Netherlands and the UK. They can be frequently heard on radio stations across Europe and their concerts have been broadcast on Austria ÖRF, Concertzender and NPS, as well and have appeared as featured artists on BBC Radio 3's 'The Early Music Show'.
Adam Woolf studied historical trombone at the Royal Academy of Music in London, graduating in 1997. During this time he became a founder member of the QuintEssential Sackbutt and Cornett Ensemble and began playing regularly with many other UK based ensembles. Principal trombone of Sir John Eliot Gardiner's English Baroque Soloists and elected Associate of the Royal Academy of Music.
Harpsichordist and fortepianist Kathryn Cok was born in the city of New York, USA. She now lives in The Hague, Holland, where she completed a Masters degree at the Royal Conservatory as a student of Ton Koopman and Tini Mathot on the harpsichord, and Bart van Oort on the fortepiano. She has worked with the Amsterdam Baroque Orchestra & Musica ad Rhenum.
Upon graduating from the Guildhall School of Music and Drama, Fiona Russell furthered her studies at the Schola Cantorum Basiliensi, Switzerland, and has since gone on to be one of the finest young cornetto players in Europe. She plays with The English Cornett and Sackbutt Ensemble and QuintEssential Sackbutt and Cornett Ensemble.
Wouter Verschuren graduated from the Royal Conservatory in The Hague. He studied recorder with Michael Barker and Jeanette van Wingerden, and baroque and classical bassoon with Donna Agrell. He is principal bassoonist of The Amsterdam Baroque Orchestra conducted by Ton Koopman.
Violinist Annabelle Ferdinand was born in Spijkenisse, The Netherlands. She studied violin at the conservatories of Amsterdam, The Hague and Sint Petersburg. After finishing her modern violin studies, she studied baroque violin at the Royal Conservatory, The Hague with Monica Huggett and Pavlo Beznosiuk. She regularly performs with Anima Eterna, the Nederlandse Bachvereniging, the Amsterdam Baroque Orchestra.

Wouter Verschuren graduated from the Royal Conservatory in The Hague. He studied baroque and classical bassoon with Donna Agrell. Wouter is sought after in the Netherlands and abroad as a bassoonist, and is equally at home with repertoire ranging from the Renaissance to the Romantic. He is principal bassoonist of The Amsterdam Baroque Orchestra conducted by Ton Koopman, and regularly plays with other renowned period orchestras. In addition, he regularly appears as a soloist, and plays in numerous international chamber music ensembles such as Caecilia-Concert, specializing in performance and research of 17th century music, and can be heard on countless CDs. Wouter teaches at the Royal Conservatory in The Hague and at the Utrecht Conservatory.

Kathryn Cok pursues a varied career as a harpsichordist, fortepianist and academic on both sides of the Atlantic. She is well sought after both as a soloist as well as a continuo player. Born in the city of New York, USA, Kathryn now lives in The Hague, Holland where she completed a Masters degree at the Royal Conservatory as a student of Ton Koopman and Tini Mathot on the harpsichord, and Bart van Oort on the fortepiano. Kathryn recently won first prize in the first solo competition for baroque instruments in Brunnenthal, Austria. She works regularly as a soloist and continuo player with the Amsterdam Baroque Orchestra, and other important early music ensembles in Europe and performs regularly as a soloist in many of the world’s most renowned Early Music Festivals such as Oude Muziek, Utrecht, Brunnenthaler Concert Zomer, Bodensee Festival, and important keyboard collections in the UK such as the Cobbe Collection, Finchcock’s, Fenton House and the Gemeente Museum, Holland. She is co-founder of the Caecilia-Concert, a dynamic international group of instrumentalists specializing in performance and research of 17th century music for instruments and voices. Kathryn is busy as a researcher and teaches at the Royal Conservatory in The Hague, Holland.