Born in 1977, Pirmin Grehl studied flute with Renate Greiss-Armin and finished with his concert exam in the class of Jacques Zoon in Berlin.
He won prizes at numerous national and international competitions, among which were the first prize at the International Carl Nielsen Flute competition 2002 in Odense/Denmark, and the second prize at the International ARD Music competition in Munich.
In 2005 he started to teach at the Musikhochschule gHanns Eislerh in Berlin.
Since 2002 Pirmin Grehl is playing as principal flutist in the Berliner Sinfonie Orchester under the direction of Eliahu Inbal.
He played as a soloist with orchestras like the Symphonieorchester des Bayerischen Rundfunks, Radio-Sinfonieorchester Stuttgart, Berliner Sinfonie Orchester, Rundfunkorchester Kaiserslautern, Rheinische Philharmonie Koblenz, Jenaer Philharmoniker.
Many solo concertos also took place with chamber orchestras like Kammerorchester Berlin, Munchner Kammerorchester and Kurpfalzisches Kammerorchester.
He recorded for several radio and TV broadcasting stations.