Sheet Music Plus has secured rights to more than 1.8 million copyrighted songs in all genres. Their service allows my husband, Larry, and I to upload arrangements of songs from their pre-approved list and offer them for sale on their site for a 10% commission. Sheet Music Plus manages the payments to copyright holders on our behalf, which would be too costly on our own. This service has opened up a whole new world for mountain dulcimer players! We currently have over 200 titles available with more added every month. (Scroll down for a list with links.)
I've started a page on Sheet Music Plus specifically for bass dulcimer parts (& sometimes also a standard harmony) that match the arrangements that Larry and I have already uploaded to Larry's Sheet Music Plus page, like the list of titles below.