oktávban
Oktávban is a term used in music theory to denote an interval spanning eight scale degrees. In Western music, this interval is synonymous with the octave, representing the distance between two notes where the higher note has twice the frequency of the lower note. For example, the distance between C4 and C5 is an octave. The term "oktávban" itself is derived from Latin "octavus," meaning eighth. Within a diatonic scale, the eighth note is the same as the first note, but at a higher pitch. This relationship creates a sense of consonance and resolution in music. Oktávban is a fundamental building block in melody and harmony, as it forms the basis for many musical structures and compositions. The perception of two notes an oktávban apart is that they sound essentially the same, but different in pitch. This is why musical instruments often have a range that repeats notes in octaves.