Ключевые слова: appearance, arts culture and entertainment, author, classical concert, composer, composition, creativity, emotion, fountain pen, grand piano, grief, ideas, inspiration, letter, music, musical instrument, musical note, musician, note message, pen, performance, performer, performing arts event, piano, piano key, playing, poet, popular music concert, record, romance, sadness, sensory perception, sheet music, sign, singing, speech, synthesizer, text, theatrical performance, touching, treble clef, vertical, work tool, writing,