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

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