Sönke Klegin was born in Wyk auf Föhr in 1981. At the age of seven he had his first trumpet lessons at the local music school. Early on in his education he started with music competitions with quite some success, winning national prizes in a number of categories. During this time he collected experience in the youth orchestra of Schleswig-Holstein (Landesjugendorchester Schleswig-Holstein) and expanded his experience with various international orchestracourses and master courses. After passing the entrance examination for the master class of Matthias Höfs at the College for Music and Theatre (Hochschule für Musik und Theater) in 2003 his next step was completed. In the following he had many engagements with northgerman orchestras, won a second prize at the Elise-Meyer Competition, earned a Berenberg Bank scholarship and had a successful audition for the Young German Philharmonic (Junge Deutsche Philharmonie), with whom he was a regular member from 2005 to 2010.

In 2006 Sönke Klegin signed a one year contract with the Bochum Symphonic Orchestra. After his return to Hamburg he worked as the assistent to Matthias Höfs at the College for Music and Theatre (Hochschule für Musik und Theater)  until 2010. During this time he gained an engagement with the Hamburg Symphonic Orchestra. In the following years he was asked to temporary fill in the solo trumpet position in large orchestras like the orchestra of the Oldenburg State Theatre (Oldenburgisches Staatstheater) or the Hamburg Philharmonic Orchestra. In this time he worked with many great musicians e. g. Kurt Masur, Sir Nevill Marriner, Sharon Kam, Julia Fischer, Paavo Järvi, Tabea Zimmermann, Edita Gruberova, Daniel Barenboim, Christian Tetzlaff, Aribert Reimann, Janine Jansen, Anris Nelsons and many more.

Next to his comprehensive free-lance work as a trumpeter, which has led him from Asia to Amerika around the world, his new focus is educational work. To complete this Sönke Klegin started a postgraduate course in culture- and mediamangement in Hamburg in 2010. He has been a headmaster at the Heidekreis music school since 2011, as well as a trumpet teacher and his educational experience has helped his students into representative orchestras and onto national competitions.

In 2012 Sönke Klegin became conductor of the sinfonic orchestra of the Heidekreis music school and can pass his decadelong experience with the worlds greatest conductors to the orchestra without neglecting his youth work.