generational gaps

there was this time, i got a visit by my young sister-in-law. just before going away, she asked to be taken out (for a dance) and her sister gave us the approval. so we set out with her in great anticipation. just the two of us. I didn't know what kind of dance she would like so, i acted like a good gentleman and asked her about her favorite music. she said she liked local music. that was good , i knew just where i would get great local music and a great crowd too! so we drove straight there and went ahead to have a great evening or so i thought. however after she went is when her sister told me how bored my sister-in-law had been than night. asking how come, she said "it was because you took her to dance to very old music and in any case its not what she had told you". but but, the music we were dancing to by the likes of dola kabarry, musa juma are the newest, in fact they are hot from the pan! but no, the issue was that i did not understand what the girl had meant by local. local musicians to her meant nonini, jua kali, nameless and such like characters! so i learnt my vital lesson that a simple term such as 'local' can have such different meanings to people separated by less than a decade age difference. i wonder which other terms would have very great difference in meanings to people separated by jubilees of age differences