Introduction: Speakers Works From Different Role
Step 1: The Idea
Approx 20 years ago I have started to learn to play in Piston B trumpet. Life is changing all the time and I want to use it in a proper way and see it every day.
Installation was easy, 2 pistons bonnet removed and 2 ear plugs inserted to the holes. The Sordino part of the set, against vibration.
![Audio Challenge 2020](https://content.instructables.com/FWM/IBPO/KBQIHCRF/FWMIBPOKBQIHCRF.jpg?auto=webp&crop=1240%2C600&frame=1&width=320)
Participated in the
Audio Challenge 2020