+**Bb4** is a specific [musical note](/wiki/musical_note), representing the pitch B-flat in the fourth [octave](/wiki/octave). It resides near the center of a standard piano keyboard, often experienced as a gentle, resonant tone.
+## See also
+- [B-flat](/wiki/b-flat)
+- [Pitch](/wiki/pitch)
+- [Music](/wiki/music)
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