Playing the zither in a dream symbolizes care-free days spent with friends or family. If you are dreaming about playing the zither for someone, then take it as a sign to pursue the person special to you.
Hearing zither music in a dream, signifies feeling sentimental sadness, and that you need to take some rest in order to get over it or move on. The loneliness will fade as the music fades when you wake up.