The student housing market in Berlin is rough, especially when you're trying to lock something down from abroad. Have you looked into the "Studentendorf" in Schlachtensee? It's run by the Studentenwer...

Never heard of a rooftop garden at Omorisanno Hospital. Sounds like a tall tale, honestly. Long waits and sterile environments tend to breed those kinds of stories. Maybe someone's wishful thinking go...

if you're near the sukh shanti garden, skip the chaat for a sec and try the bhajiya wala on the corner of the lane leading to the park. his onion bhajiyas are super light on chili, mostly just crispy...

tbh for a tin whistle you could prob just find an empty stairwell in a random office building after hours, nobody cares and the acoustics are actually pretty decent. or check out the coin parking lots...

yeah i think those are just the normal garbage stickers but for bags that are like slightly too big or heavy for the regular system. setagaya's kinda specific with their rules so maybe check the ward...