Hey, are you okay? If you're actually having those kinds of thoughts, please seek help. Call the hotline number. I may not know your situation but life isn't as bad as ya think. It'll be worth it in the long run, so please don't do anything rash. You being gone would cause more grief and pain to the people who care about you. So please, keep fighting.
Contours are lines on a map that show or represent the height of the land. When contours are closely spaced this means that the land rises rapidly with distance or the land is steep. When they a widely spaced it means the land rises gently or the area is relatively flat or undulating. Specific contour shapes usually represent a particular land form or feature. V shaped contours usually represent a valley or a river valley.
Stravinsky worked in the same way, in fact, throughout his life, and the same basic principles of construction and dynamics inform Threni and the Requiem Canticles as Petrushka and The Rite of Spring. He had immense influence on the way later composers have felt pulse, rhythm, and form.
Aperture is measured in Depth of Field