Bach Bb Trumpet LR19043B "Mariachi"The new LR19043B ushers in a new era in the world of Bach Stradivarius. This marks the first time that bronze material has been used in the production of one piece hand hammered professional Bach bells. The LR19043B features a lightweight body and two piece valve construction that provides a quick response. The open feel of the reverse construction #25LR mouthpipe combined with the new bronze material in the bell results in a very responsive, lively,