I'd say I use pretty much everything on the arranger, and even though I don't sing a great deal, I use the vocal harmonizer/processor for vocoding my little Yamaha CS-01 analog synthesizer, and, of course, processing other instruments as well. It's there if I have guest vocalist or someone who wants to record a song and I spent time learning how it works and how to use its many features like compression, delays, harmonies to name only a few.

As Fran said above, many folks aren't even aware of the capabilities of their mid to top line arranger.

Lately I've been having fun with my own home-made FreePlay styles and enjoying not having to play to a fixed tempo...especially good for orchestral/symphonic type music or just plain improvising on a simple theme.

Having an arranger is like having a studio packed with a huge variety of instruments and players, the latter being prepared to play at a moment's notice no matter what the hour.

Ian