Usually advanced studies for French Horn tend to be too difficult. And people run away from them...
Horn practice doesn't really have to be hard, even on difficult aspects
I am writing some studies for Horn on modes scales not very usual in horn studies, as well as some extended techniques and special effects. All this in easy to play studies where difficulties are not mixed, (if one study is dificult or even very difficult in some aspects, it will be simple on others) and above and above of all its always present a great rhythmic component and a lot of fun.
Already I wrote 9 and I intend to make an edition with 12 studies.
I've post some audio examples on my website at:
http://www.ricardomatosinhos.com