Somebody on the German forum bought the Swing and world pack.
You can load one pack at a time into the KB and then of course one style.
Here are some Audio samples from him:


Big Band Swing (nur Drums): https://app.box.com/s/0its2bswgpz17xztg9xw
Big Band Swing: https://app.box.com/s/f3471agkjzc3oknq9udi

Cool Swing (nur Drums): https://app.box.com/s/mgi1dvl3jhk02jmm5gnr
Cool Swing: https://app.box.com/s/s92tvpyiap5plo2qa7e3

US Marching Band (nur Drums): https://app.box.com/s/wwcpcsjmz3ezoimcptra
US Marching Band: https://app.box.com/s/bdrqekv4712bxtpv38kv

ModCeltic4-4: https://app.box.com/s/tzgpos60ikmkrjl1oleh
ModCeltic6-8: https://app.box.com/s/ixztu3bhqg8cu0fdphvu

Saeidy Pop: https://app.box.com/s/hnv7tyyfvuodhy20rkci
Malfuf Funk: https://app.box.com/s/ayoynqbp891zr5tcvwwp

Here is the post with a picture of the loaded styles.
Scroll down...

http://forum.yamaha-europe.com/showthread.php?41315-Neue-Audiio-Styles-auf-Yamaha-Music-Soft-erh%E4ltlich!


Eric