Korpa 
Zildjian ZBT Cymbals are the Perfect Place to Start Start Here. Go Anywhere. Don't let price stand between you and a sensational sounding set of cymbals. Revolutionary new manufacturing techniques developed by the Zildjian Sound Lab release a fast, bright, high-volume sound from the power-packed ZBT alloy. They make an ideal first set of Zildjians for any school marching and concert band. Zildjian Bronze Cymbal Technology. Beginning with precisely identical bronze discs, sheet cymbals are shaped, hammered and lathed with the same care as all Zildjian cymbals. Their voices have a higher pitch, more focused overtones and a faster decay than Cast Bronze cymbals and produce a more consistent sound from cymbal to cymbal.
