Ключевые слова: 3035, 30s, 3540, 40s, 60s, 6570, 7075, 70s, activity, africanamerican, american, ballroom, ballroom dance, ballroom dancing, caucasian, class, couple, dancer, elderly, european, female, foxtrot, french, holding, indoor, learning, leisure, male, man, music, pair, party, performer, person, quickstep, rehearsal, rhumba, rumba, samba, senior, step, studio, tango, together, waltz, woman, young,