A4 440
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Bass tuner

Standard 4-string bass: E A D G, an octave below a guitar’s lowest four strings.

String 4E141.20 Hz
String 3A155.00 Hz
String 2D273.42 Hz
String 1G298.00 Hz

Low E is 41.2 Hz, below what most phone microphones pick up well. tuneplz reads the overtones and fits the fundamental, so it stays accurate anyway.

Pluck over the neck end of the pickups for a cleaner, steadier reading.

Tunings

Tools

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Tuning

Capo (all tunings)0