We've added our "RAW BRONZE" alloy to include our Straight Soprano. It has the same mechanical specs as model SDSS-XG 707 except for faster taper in the upper section of our exclusive design one piece drawn tube. Key inlays are brilliant black NACRE mother of pearl from select Abalone shell. Reduced turbulence guarantees a sound and timbre focused like no other soprano sax on the market. No lacquer with extra-fancy engraving throughout the entire instrument.