deinemusik - die jamsession für Dich

In the page's words:

Do you play an instrument and are looking for opportunities to make music with others?
Do you already have your own lyrics, melodies or motifs and ideas that you would like to try out?
Then you've come to the right place! We organize weekly sessions in which you can present your ideas, work on them further, implement them together with other musicians and network. The offer is explicitly aimed at beginners, no previous knowledge is expected and every genre is welcome. So be sure to attend the next session and #makeyourmusic!