Last month, I wrote a mini-review of Henle's game-changing app, which allows one to load and annotate digital Urtext editions into your iPad. If you want to learn more about the app and how it works, check out the post here. As I am preparing for a concert of the complete Brahms violin and piano sonatas next month at Chicago's PianoForte Foundation, I want to talk about how the Henle app has been instrumental in my studies and preparation for this event. One of my favorite fe