Ключевые слова: accompaniment, brass, classical, closeup, composing, conformation, damper, delicacy, design, engineering, felt, flat, fragility, hammer, harpsichord, instruments, interior, jack, jazz, keyboard, keys, knuckle, length, macro, mechanism, metal, music, musical, notes, octaves, parts, pedals, percussion, performances, plan, play, popular, roller, sharp, sound, strength, strings, structure, tailpiece, technology, temperament, tension, traditional, transmission, tune, upright, vertical, vibraphone, vibrating, wooden,