the.com/octave

eight notes pretending to be a circle, where the end is secretly the beginning

means The interval between one musical pitch and another with double its frequency, spanning eight notes of a scale and sounding so alike we give them the same name.

from From Latin 'octava,' meaning 'eighth,' the feminine of 'octavus' (eighth), built on 'octo' — eight — a number-word so old it runs through Greek 'okto,' Sanskrit 'asta,' and lands in English 'eight' too. The 'eighth' here counts the notes of a scale inclusively: do up to the next do, eight steps that arrive back where they began.

frequency math
each octave doubles the frequency exactly
missing octave
some cultures divide tones into 22 or more
brain trick
same note, octaves apart, sounds identical to us
latin root
named for eight, yet spans seven distinct notes
piano range
a grand spans roughly seven octaves
for instance

octave of easter — eight-day liturgical period in the catholic calendar following easter sunday

octave pedal — guitar effects pedal used by jimi hendrix and modern musicians to double notes at higher octaves

the.com · every word