Peter Verdonck was born in Herentals, Belgium on 1 September 1979. He started the study of the saxophone at the Music Academy of Turnhout with Mark Verdonck, which he continued at the music department of the Heilig Graf Institute in Turnhout. After finishing his high school in 1998, he moved to Ghent to study with Willy Demey at the Royal Conservatory. There he took courses in composition with Lucien Posman as well and he graduated in June 2003 with highest honours for saxophone, chamber music and improvisation. In June 2007 Peter obtained the diploma for  Postgraduate Concert Soloist at the Royal Conservatory of Antwerp with Hans De Jong. Furthermore he followed masterclasses with Hans De Jong, Claude Delangle and Rassher Saxophone Quartet.

Beside Thelema Trio, Peter plays with the Rhythm Junks and he’s the founder, composer and saxophonist of the metal band "Wretched Vixen". Furthermore he can be found in various ensembles and groups. This brought him to halls all over Belgium, but also the Netherlands, Slovakia, Poland, Italy, France, Germany, Peru, Japan and China. In 2005 he performed as a soloist with the Belgian chamber orchestra Prima La Musica in the Concerto for Alto Saxophone, String Orchestra, Accordion and Percussion by Belgian composer Raoul De Smet.

He composes chamber music for many different line-ups and he’s a saxophone teacher. A number of his works have been recorded by a.o. Thelema Trio and Aranis.