I once played in an old Jail. It was in SA in, I think, Georgetown. It was an historic stone structure & had great accoustics. I wasn't able to record as I had nothing but a harp with me.
Could imagine it would be a good way to practice harp being in prison? Probably need to be in solitary as other prisoners would complain. Bit drastic, I think I will stick to subways, caves, tunnels etc.
