The infamous FitnessGram PACER test audio uses nine library tracks gleaned from various sources. I have taken it upon myself to identify these tracks, though I am missing two.
The very first track ("Feel It") (voca.ro/1mQdNwDe7wme)
The seventh track (voca.ro/11ntiUCzB3ea) (note that here the dings from the test audio are still present)
All identified tracks thus far have been from Abaco, the eMu Production Music library, Mondiophone, and Artful Music.