2, 40-45, 40-50, 40's, 40s, 45-50, 50-55, 50-60, 55-60, ability, adult, cheerful, child, children, color, colour, curious, dad, dada, daddy, delighted, educating, education, enjoying, expertise, family, fatherhood, fathering, fellow, fifties, fifty, forties, forty, gentleman, glad, gratifying, guy, harmony, human, human being, indoor, inside, instructing, instrument, interest, jolly, joy, juvenile, kid, kin, kinfolk, know-how, lad, lighthearted, male, melody, merry, mid life, middle age, middle aged, middle-age, middle-aged, movement, musical instrument, musicality, pa, papa, parent, percussion, person, pleasing, pleasure, pop, poppa, relation, relationship, relative, relaxation, restful, satisfaction, seated, smile, studying, teacher, technique, three-quarter length, tranquility, tune, two, western european, young, youngster, youth, youthful,
