It would be great to be able to set custom transpositions for different voice parts especially for Middle School boy's voices. Texas's UIL sightreading is mostly in G for them, so I would like for them to be proficient in reading that key, but they need to sing it lower or higher. In the beginning of the year one kid may not be able to sing low enough to hit a G, and one kid may not be able to sing high enough to sing a G.
I'm loving the sight-reading builder. You guys did a great job with it.