I chose a bronze tuning plug for my Sankyo instrument, which made the instrument intonation even more stable. It also gave me a noble light to the full range of sound that immediately convinced me. The deep register is noticeably more full-bodied, while the former raw color has become brilliant. Double tongue play is not dry, but bay sound. I chose a thick silver membrane for the zirconium corona plug, so this triple combination helps to create a universal sound that enriches my play, playing a romantic or 20th century piece, while also giving the 18th century repertoire a more eloquent and intimate sound.