Znamenny Chant is a singing tradition used by some in the Russian Eastern Orthodox Church. Znamenny Chant is a unison, melismatic liturgical singing that has its own specific notation, called the stolp notation. The symbols used in the stolp notation are called kryuki or znamëna. Often the names of the signs are used to refer to the stolp notation. Znamenny melodies are part of a system, consisting of 'eight tones' ; the melodies are characterized by fluency and balance.