This is a field recording on a sunday-night in frankfurt am main (d). Wind is in higher parts of the sky and audible due to the skyscrapers sharp edges. Quite an ambiance i think.
Twanging a table knife on a desk, recorded with minidisc and condenser mic indoors, approx 6" distance. Background noise removed with audacity. Short metallic vibrating noises.
Little riff in a minor over the a-string, playing with a metal slide. Clean electric guitar. Recorded and played by me with audacity, and a focusrite scarlett 2i4 interface on a mac. 10/24/2014, madrid. .