gives the frequency of the note D in octave 4.


  • To use D4, you first need to load the Music Package using Needs["Music`"].
  • D4 is the name of a pitch in the standard equal-tempered scale.
  • The frequency is measured in Hertz.

See AlsoSee Also

Dflat4 bullet Dsharp4 bullet D3 bullet D5 bullet C4 bullet E4 bullet F4 bullet G4 bullet A4 bullet B4

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