Natural scale

Natural scale may refer to:

Music

 * 5-limit diatonic major scale
 * Natural minor scale, as opposed to harmonic and melodic
 * C major and A minor, the diatonic scale in keys with no sharps or flats
 * Harmonic series (music), the series of pitches produced by instruments such as the natural horn and trumpet
 * The major scale in Pythagorean tuning, formed from a succession of fifths starting one below the tonic
 * On many wind instruments, the scale most easily produced by lifting the fingers one at a time from bottom to top

Other

 * Nondimensionalization, the removal of units from a mathematical equation