Another issue is chord spacing. Part of teaching a composer is giving him a list of chord spacings that are playable and those that aren’t. This thread makes me think of that old Magic Fire Music. It’s Salzedo’s solo version that is barely playable, more than the original with its multiple parts. Funny that they use it for Metropolitan Opera auditions when they have the harps to play the original. I nailed it at full speed when I auditioned for them, to their evident surprise, but I played a wrong note in another excerpt for misreading a chord in a badly handwritten part from Andrea Chenier, so I got booted over that tiny gaffe. Jerks.