I took a small walk this morning, to learn to know the area where I just settled. Again, "just around the corner", there is a "café musical" called "Vissi d'Arte". I have not yet been there, but they offer concerts more or less every evening, mostly "free of charge", meaning that you are supposed to give "something" to the artists and, I suppose, consume something.
I found their site http://www.vissidarte.fr/ which is well updated. You can see that they have a program for this week which includes "Récital chant piano" 27/3, "Récital chant piano" 28/3, "Trio violon, violoncelle, piano" 29/3, "Récital quatour baroque" 30/3... I will go there soonest... and give you a report. Somebody would like to join?