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Recognised as Musical note

D1

  • D1
  • 36.71 Hz
  • MIDI 26

D1 is MIDI note 26, sounding at 36.708 Hz in equal temperament with A4 = 440 Hz. Its wavelength in air is 9.344 m, and it sits in octave 1.

Pitch

Scientific pitch notationD1
MIDI note number26
Frequency36.7081 Hzequal temperament, A4 = 440 Hz, a convention rather than a constant
Pitch classD (2)
Octave1

As a sound wave

Wavelength in air9.344 mat 343 m/s, dry air at 20 °C
Period27.2419 ms
Frequency one octave up73.416 Hzdoubling the frequency
Frequency one octave down18.354 Hz
AudibleYeshuman hearing runs roughly 20 Hz to 20 kHz and narrows with age

Intervals from here

Octave belowD0 · 18.35 Hz
Perfect fifth belowG0 · 24.5 Hz
Semitone belowC#1 · 34.65 Hz
Semitone aboveD#1 · 38.89 Hz
Major third aboveF#1 · 46.25 Hz
Perfect fifth aboveA1 · 55 Hz
Octave aboveD2 · 73.42 Hz

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The same note in other octaves

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Every value on this page was computed from “note d1” by Nerdulator’s reference engine. Nothing here was retrieved from a database of answers or written by a model.