In late December 2020 we were given permission to make a long form landscape recording of Abney Park nature reserve in north east London. Abney Park is an area of long established woodland, surrounded by busy streets and major roads carrying traffic in and out of central London. It's an oasis of tranquility used by locals to escape from urban living, that very convincingly does look like deep rural woodland. Muddy paths between tall trees, with the advantage if you take the right routes, to never see the city beyond.
To the ear though, the city is usually very much there and present. All around. And from above. Planes heading to London's airports pass almost directly overhead, often separated by only a minute or so. Sirens circling. Helicopters hovering too. Wondering along the muddy paths and admiring the specimen trees can require some considerable zoning out of the aural experience, depending on the action of the day and weather conditions. 
What we've found though, by going back through our archive, is this recording. It is one we made on Christmas Day, in between lockdowns and when air travel was substantially reduced. The sounds of the city are of course still present, but greatly softened. The wind can be heard murmurating through the trees. The birds form the primary sound sources. Their crisp songs echo, and reverberate through the empty woodland. It's a unique soundscape, that is unlikely to happen again. 
You can of course still witness periods of tranquility within Abney Park. We do every time we go. And there are times in this recording when the presence of human activity approaches that which is normal now. What is we think different, and demonstrated in this piece of captured quiet, is just how long the peace lasts. And just how delicate the wide panoramic sound of the city rumble is, compared to today. 
We'd like to think this recording might serve as a benchmark for future city designers. and for everyone to listen to, as an example of what north east London can, and did sound like, with human made noise re-balanced with the natural world.