Yes, an A chord is just an A chord, no mater what the instrument, but ......

Unless you have a chromatic dulcimer, there will be lots of times when you can't play the required chord. You can't do a C or F chord in DAD, can you? They will mostly play C-F-G (1-4-5) chords.

Years ago, ukuleles were typically tuned to the key of D. There are still a number of books available on that and most of the old sheet music with uke chords used that. If you were playing a uke with a dulcimer group, the answer would be just use D tuning on you uke.

I did that for a while before I switched from uke to DAA noter-drone dulcimer.

You are trying to do the reverse.

Consider tuning a DAD dulcimer to CGc, or a DAA dulcimer to CGG (a traditional tuning). That should match up well.

If you are playing from their TABs, you'll still have to transpose chord labels if you are working from those, but D becomes C, F becomes E, G becomes A, etc.

Hi kids I think I may be diving into Deep-water here but anyhow here goes.  I'll try my best not to just ramble on. I just noticed there is a big ukulele group that meets every week in my area. My question is,

Is it possible to play along with ukuleles with a dulcimer?  I have noticed that it appears that the ukulele group mainly play with just their chords, so is it possible to play along with the Mountain Dulcimer just using our cords? They're tuning is G-C-E-A So if my instrument is tuned to D-A-D And the Ukulele group is playing a song with their  A chord and then if I play using our A chord On the dulcimer Would that work? Would it sound okay? Is an A chord just an A chord. I just picked A chord for an example  hopefully this makes sense 

Thanks from Jon Lilley