any surprisingly cool dual voices?

[dr4sight]

I've just started recording songs on my DGX-650 and while it doesn't have all the bells and whistles of the latest PSRs and other Yamaha keyboards it does have a nice tone and feel.

Most of the melodies I play are with one of the half dozen piano voices.  Sometimes I add a dual voice.  I suspect that combining the piano with some other instruments could result in a unique and pleasing sound.  I wonder whether you more experienced players have dual voice combinations that you particularly like to use in your recordings and performances.

Also, do you find it helpful and necessary to adjust the dual voice volume?  In most cases I find the volume of the secondary voice to be too low.

So I'm just throwing that out there.

[Toril S]

Hello You are a good pianist, while I am not, so I often use harmony when playing piano voices. That way the piano sounds more like I am playing chords, but I am not As for dual voices, there is no rule. If you think two voices fit well together, use them together. Sometimes I crank up the volume of the second voice a little, but if it is to loud, I find it effects my recordings.
Strings are always nice as a second voice. I have never had a DGX, but I have listened to your recordings, and they sound very good. You can also import styles on it, but there are some limitations, they must be Style File Format 1 (SFF1), and there is I believe only two intros and endings. Check your manual, or ask other DGX owners here.
Two years ago I had the opportunity to try an old DGX model, and I liked the feel of it.

[mikf]

You just need to experiment like Toril says.  Many arrangers already have many pre-layered voice combinations to choose from, like piano and strings, or piano with a touch of electric piano. Often the secret is to not overdo the second layer - a hint of strings or chorus is nice. Especially if you are playing two handed. That way the piano voices still sound clearly but it adds some fullness without getting muddy.
You can get a bit more bold with the layered voice combinations if you are playing single note lead. Then you can use quite striking synth/brass combinations for example.
Mike