In the week since I have repaired my cymbal (pictured below) I have made a few interesting observations. Cymbals are machined through a process of rolling, spinning and hammering, which work-hardens the bronze making it strong and durable (https://www.youtube.com/watch?v=SK8XHULfllo). Also, Copper alloys behave in the opposite way to iron alloys, in that when they are heated to red hot and then cooled quickly, it softens the metal (as apposed to the hardening that occurs in iron alloys such as steel). After I finished braising my cymbal, it cooled very quickly because it is such a thin sheet of metal. This has effectively annealed the area that I braised, meaning it is now much softer than the surrounding bronze. As the wave form travels through the cymbal after i strike it, it causes this soft area to bend upwards over the course of a practice/gig, and I can hear the sound of the cymbal deteriorate over this time. Also, after last weekends gig in Auckland, I noticed another crack appearing within the softened area of the cymbal, which will now need repairing also. Oh well, I got an extra gig out of my $550 NZD cymbal!