Accompaniment Set (12 strings) / Concert Zither “Bergfee Steel” (red) Munich Tuning – Es1 – Gis12 (es’ – gis) Scale length: 41,5 cm Finest steel with little silk, wound with a fine silver plated wire Great for acoustic playing and electromagnetic sound transmission CONCERT ZITHER Bergfee Steel Red is our strongest zither string. It is manufactured with very little silk (on a steel core) and is powerful in tone (stronger and more aggressive sound than Nylon Blue). This string is perfectly suitable for the sound pickup, too.