A lot of people performed from their garages. The ‘punk’ attitude originated from British Youth, despite the fact that it all started from within the US
The drawing surface would be delineated using gridded guidelines, snapped onto the wall using string coated in red pigment dust (very much like chalk lines used by modern carpenters). This grid helped the artists properly proportion the figures and lay out the scenes. Scene elements were drafted out using red paint, corrections noted in black paint, and then the painting was executed one color at a time. Even on carved relief, many elements in a scene would be executed only in paint and not cut into the surface. The drawing surface would be delineated using gridded guidelines, snapped onto the wall using string coated in red pigment dust (very much like chalk lines used by modern carpenters). This grid helped the artists properly proportion the figures and lay out the scenes. Scene elements were drafted out using red paint, corrections noted in black paint, and then the painting was executed one color at a time. Even on carved relief, many elements in a scene would be executed only in paint and not cut into the surface.
Études are composed of three sets of studies for solo piano, with 27 pieces in total.
Yep, your guess is right! Tenebrism, is the correct answer!
"Tenebrism deals with the extreme contrast of light and dark, along
with chiaroscuro, the two effects were what Caravaggio used to make his
paintings seem so dramatic."
Or maybe I'm wrong xD. Hopefully I helped!