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Piano note

D3 Piano Note Frequency

D3 is key 30 of the 88 on a standard piano, with a frequency of 146.83 Hz when the piano is tuned to A4 = 440 Hz.

146.83 Hz

D3 at a glance

Frequency (A4 = 440 Hz)
146.83 Hz
At A4 = 442 Hz
147.50 Hz
At A4 = 432 Hz
144.16 Hz
Piano key number
30 / 88
MIDI note number
50
Octave
3
Key colour
White key
Wavelength in air
2.34 m
Period (one vibration)
6.81 ms
Register
Bass

Wavelength assumes sound travels at 343 m/s (air at about 20 °C).

About this part of the keyboard

In the bass section the strings are usually wound with copper, and on most pianos each note has two strings that must be tuned in unison with each other. Exactly where the wound strings end and how many strings each note has depends on the piano model and size.

Is your D3 in tune?

Play D3 on your piano and our free online tuner will show how many cents it is from 146.83 Hz.

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Piano sounding off?

If your piano is more than a few cents off, it's time for a tuning. We tune pianos across Israel.

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