Peer Baierlein started playing the accordion at the age of 7 and then switched to the trumpet when he was 9.After several years in the local brass band he started his professional studies at the early age of 16 at the Musikhochschule Köln in Germany. He first became a classical trumpet teacher before beginning his studies with Prof. Malte Burba as an orchestra musician at the Musikhochschule Köln and with Arno Lange at the 'Deutsche Oper' in Berlin. In 1996, he moved to Leuven in Belgium to study with his favourite jazz-trumpet player Bert Joris at the Lemmensinstituut. Upon completion of his studies, he moved for a year to New York City in 2000, to take lessons form John McNeil and to play his instrument abroad. He then came back to Belgium, where he finished his studies for jazz trumpet and -after that- specialised as ‘lead-trumpet’, also at the Lemmensinstituut. Between 2005 and 2007, Peer Baierlein has been studying classical composition with Piet Swerts. He continued his studies from 2008 - 2011 and followed a special education for composing film music and classical orchestration with a.o. Denis Pousseur,Victor Kissine and Jean-Luc Fafchamps. From 2011 - 2013 he was a student for 'new media' at the 'Hochschule für Musik und Theater' in Hamburg. In 2013 the famous Swedish composer Daniel Börtz accepted him as his first student since 20 years.
Since 2007 he works as a musician and composer for the 'Deutsches Schauspielhaus Hamburg', 'Staatstheater Hannover', 'Staatstheater Stuttgart', 'Konzerttheater Bern', 'Centraltheater Leipzig', 'Theater Basel', a.o.