Ключевые слова: abstract, art, background, banner, blackboard, blank, blankness, board, chalk, chalkboard, classroom, clef, conceptual, design, document, education, flat, frame, glass, grunge, handwritten, icon, label, lacunae, manuscript, music, musical, musician, pattern, performance, plank, school, schoolroom, scrap, scratches, script, singing, sound, style, symbol, tag, teaching, text, texture, typeface, white, write, written,