It is even more complex than that. That land was originally a lake, so the city was built in top of that. Then, the extracted water is hard to replenish due to the permeability be near to 0 as it is now an slab of concrete, and due to the heavy construction density and population, after water extraction the soil gets compressed.

Did you say… Martha?

I have around 11k files on my phone’s sdcard, and while the interface is not that polished, Fossify Music Player has been able to handle my library quite ok.