i did not find it on the faq:
from my understanding the single licence covers the single use of a musical track to be the background loop of a corporate song, onto which a voice will be added, as it acts similiar to a sound logo.
the song will only used as an identifier by the (in this case) swimming school, and there is no further resell - only a use troughout their own products.
however - as i found the following passus in your faq i wanted to make a 100% sure. because from my point of view it does not seem to match your definition of popular music - as it’s basically an ad jingle - which would also allow the background music.
thanks for your answer yrs. Frido
Can I use an AJ track in a stand-alone music track? What about sound effects?
You may not use music in stand-alone music tracks, but you could use sound effects in a music track.
Example: You can’t add lyrics to an audio track and sell it on iTunes