To answer your question, you can message me privately through the contact form on my website: www.SamTheMusicMan.com .
I do have tab for it, in D. If you're able to tune a dulcimer down to CGC, it plays in C.
Out of respect for the copyright holder, though, I prefer not to email the sheet music. If you give me a snail mail address, I'll send you a copy.
Thank you for your note, Vlillik, and welcome to a wonderful instrument! You'll discover that the dulcimer is great for many kinds of songs and many styles of playing. ("Don't Sit Under the Apple Tree" is actually pretty easy to play -- it's mostly moving the same chord form, or similar chords, up and down the fretboard.)
When I started playing the dulcimer, I made a few strategic decisions, and they have done very well for me:
Hi Vlilik, and welcome to the wonderful world of the Friends of the Mountain Dulcimer. It's a good place to come, spend some time, learn about the dulcimer, and to meet some good people. I have heard (Youtube) Cyndi Lauper play Time After Time on her dulcimer. I'm glad she decided to do some of her songs with the acoustic dulcimer.
Greetings! Welcome to our friendly musical neighborhood Vli!
Hey Vlillik, welcome aboard. Glad ya found us.
Welcome, Vlillik, to this little corner of dulcimer heaven. Cyndi's acoustic versions of "Time After Time" where she plays dulcimer accompaniment are really good, aren't they? Seems she's the Joni Mitchell of her generation and opened up a lot of eyes to the instrument. Hope you enjoy it here.
Welcome to FOTMD Vlillik. It's good to have you aboard.
"The dulcimer sings a sweet song."