With the exception of Audya, most of their stuff is compatible. In fact you can take a style from a Solton MS and the SD7 will convert it for you. Just need to tweek them a little using style view (organs normally one 8ve to low) and resave. I recently converted 400 styles from a customers X1 for use on his new SD7.

The problem is the Audya is head and shoulders above any other instrument ever made from a style point of view....Audio Styles for Audya are massive and unique to that instrument. 8 bars per arranger with full wav files for fills, breaks etc. (plus live guitars of course) The SD7 is different and more akin to a normal keyboard, so its not possible to simply convert one of the full Audya styles. However standard midi styles from Audya do work in the SD7. MJ pro etc and they will be automatically converted too.