Hey Sophie! I missed this! Our website is currently down (being redone) but our works list is the only thing up. We have over 60 pieces written for us and we are just a harp and percussion duo 🙂 The instruments used are all given in the works list. http://www.duoharpverk.com Also, if you want to hear some of them you can check out our album for free on bandcamp. (duoharpverk.bandcamp.com) If you find anything, just send me a message!