Lucky, I'm not sure what you mean by a button that 'enhances' the style. I am thinking that this possibly is the Basic and Advanced buttons on the older arrangers. Correct? You STILL haven't simply told us what MODEL of older Roland you have, this would help.

But if it IS that Basic/Advanced button, all that was was Roland's older way of triggering different Variations. In truth, even back then Roland had a four Variation system (but only the two fills). They were Original, Original Advanced, Variation and Variation Advanced. Back in those days, Roland had basically a 'Verse' 'Chorus' kind of structure, with the 'Advanced' button playing a pattern that was basically similar to its' Original/Variation source, with simply more Parts added.

These kind of styles come in perfectly to newer Roland's, as they have four Variations (now Roland simply use Var1-4 as the names, but tend to structure them as a more steady progression in intensity, so 1 & 2 are more different than Basic and Advanced used to be). The two fills from the legacy styles are mapped into the SIX fill slots in the new style structure, and basically ( ) the style plays pretty much the way you hear it now.

I certainly have NEVER found an old Roland style that didn't play in my G70...

But yes, you MIGHT want to wait until after the Sept 1st to make any decision (doesn't look like you are in any kind of hurry, anyway!), but my bet is no new TOTL or MOTL arrangers (I'm afraid I put GW-8 and Prelude at the BOTL ).

BTW, it's interesting to hear Elvis, the Beatles and the Beach Boys labeled as 'not dated'! How easy it is to forget that that music was from 40-50 years ago Time flies when we are enjoying ourselves, eh?