Apple and Google are currently running similar telly adverts for iPad Air and Google Play, respectively.
On a lark, I swapped the two adverts' narrations.
Google Play video + iPad Air audio mesh pretty well.
iPad Air video + Google Play audio is less harmonious. 0:24 ("bands have heart") and 0:48 ("it wants break-up songs"), however, are bullseye matches. And the last 10 seconds!
I also input both adverts into YouTube Doubler.
0:24 – both singing at concerts
1:01 – both underwater with fishes
1:19 – arms outstretched