Ключевые слова: audio, band, cellphone, chord, closeup, concert, electric, electrical, electronic, entertainment, equipment, fingers, guidelines, hand, harmony, instrument, instruments, key, keyboard, keyboards, keys, live, man, melody, midi, music, musical, musician, night, note, object, performance, performer, person, phone, pianist, piano, play, player, playing, practicing, professional, pub, show, smartphone, sound, stage, studio, synthesizer, technology,