The guitarist Leonhard Spies had already performed as a member of ensembles and as a soloist at home and abroad before his studies. Concert tours have taken him to France, Italy, Poland, Russia and Singapore. He completed his master's degree in classical guitar solo with Roberto Aussel at the HfMT Cologne in summer 2016 with top marks.

In addition to classical music, Leonhard Spies has also devoted himself to popular music styles since his youth. In klezmer and tango music, he appreciates the opportunity to combine popular and classical music and to write music himself.

Leonhard works as a freelance musician in Cologne and performs with Anna Neubert as „Duo FIDES“ .

In addition to his musical activities, Leonhard regularly appears on stage as a performer for theater and music performances.