This is what the composer says to this music:
"I was listening a lot to the music of Giacinto Scelsi at the time  when I wrote this piece. I remember sitting an evening listening to some  trombone pieces. I felt deeply that I wanted to write something  similar, but didn´t feel comfortable copying his ideas.
I went to bed and woke up in the middle of the night certain that  Scelsis ghost was standing at the foot of my bed telling me that it was  ok to write a similar piece. The next morning I got out of  bed and  wrote this piece in 2 hours."
Difficulty: Medium