I'll be back. Reply Thanks for visiting my web sites. I hope to get back to them soon and add more significant info. I don't have any trouble answering your questions and try to be as helpful as I can when asked. The alloy of brass is most significant during the manufacture of the instrument.
Some alloys are softer but work harden faster while others stay pliable after many operations.
The formation of a bell requires a alloy that will remain piable through many successive operations. For this purpose Low Lead Brass or Cartidge Brass are used. Cartidge Brass is slightly harder but contains no lead, an ingredient which can cause surface imperfections. These are the most common but not the only alloys of choice. I get my brass from Copper and Brass Sales.