Hello Samson,
There is a choir, welcoming everyone (refugees or not) who likes to sing. They meet every Monday, between 8-10pm at Karl-Kunger-Street 15, 12435 Berlin-Treptow.
Find more information on: berlinerfluechtlingschor@yahoo.de
Please find attached an example of the journey, arrival station is Bouchéstraße.
Good evening!