Heres a description from Audible
By listening to these specially composed melodies with their rhythmic repetitions of Japanese and English a few times, you pick up over 200 essential words and phrases that will not just be on the tip of your tongue, but will be burned deeply into your long-term memory in next to no time.
Heres the website: http://www.earwormslearning.com/
It seems volume 1 is mainly for beginners going on holiday to Japan so its probably a bit too basic for most but it could be helpful
