UD,
This feature is available on the X-series (OS4.0), XD-series and SD1 [Bass & Lower LOCK feature]. This way, when you change from one style to another, the arranger components (bass and lowers {if you want}) will remain unchanged. In order to maintain volume levels and instrumentation as you move from one style to another, you can user REGISTRATIONS and 'freeze' accompaniment changes.
Hope this helps.
Thanks,
AJ

[This message has been edited by Ketron_AJ (edited 07-24-2002).]