The main focus of this thesis is to describe the life of Karel Husa and his work. Special attention is payed to works for reed instruments. The thesis is seperated into 4 chapters. At the beginning I characterize the development of the music of 20th century and I present summary of the czech music composers, which have composed and some of them still work in USA. In the 3rd chapter I focuse on the life of Karel Husa and in the final chapter I deal with his work for reed instruments. In this part I analyse chosen pieces from the structural and compositional point of view and I've tried to find its main link components and major differences.