Answer:
Romanesque churches designed with heavy wall pointed or round arches, vaults, and piers for columns. Romanesque architecture came to Europe after the crusade when Europeans went for religious war. Crusaders get to know the architectures of Byzantine Empire, built with thick wall, with fortifications. The metalworking also came for the fitting and decoration of buildings.
Positive space refers to the main point of focus, negative is the background
In tonal Western classical music (music with a tonic key or "home key"), the most frequently encountered chords are triads, so called because they consist of three distinct notes: the root note, and intervals of a third and a fifth above the root note. ... A series of chords is called a chord progression
