Zinc is a chemical element, symbol Zn, atomic number 30
Copper is a chemical element, symbol Cu, atomic number 29
Brass is an alloy of zinc and copper

Patrick Crossland - trombone
Robin Hayward - microtonal tuba
Ella Vala Ármannsdóttir - microtonal horn

The unique microtonal valve systems used by Zinc & Copper Works have been sponsored by B&S Musical Instruments and the Berliner Senat