Just thinking about Percy Grainger made me wonder if he had written much for harp, and I found a site where some of his harp pieces are listed. Has anyone played any?
I guess his music is sort of an acquired taste, but I love everything I’ve ever heard or played that he wrote.
I don’t know about solo literature, but I do remember playing a few Grainger pieces written for Wind Ensemble/Symphony that the harp was a critical element in. I remember for one piece specifically, it said on the harp part: “Use all of your harpists. Use as many as possible.” But of course, I was the only one around who was available for that concert, so there was only one.