Tiemen Bosma is a multi-instrumentalist player who is a substitute fiddler in Assassenachs. Tiemen was born in Groningen and to this day still lives there. Music has always been a big part of Tiemen’s life. He started playing the violin at the age of eight, joining the HVSO orchestra a couple years later.
His interest gradually changed to the guitar and rock and blues music. (Electric) guitar is still Tiemens main instrument. Since 2018 he has been playing the great highland bagpipe at the Clan Macbeth Pipeband in Groningen, and has recently begun tutoring new students.
Tiemen has played a lot of gigs on the streets of Groningen with his bluegrass / folk duo ‘The Grunn City Ramblers’. Currently he is busy studying but is still very active with music on the side, the most recent activity of which was joining the Assassenachs.