Chord · 6ths & Adds

B♭add4 — B♭ Added 4th

B♭add4 is the B♭ added 4th chord. It is built on the root B♭ with major 3rd (D), perfect 4th (E♭) and perfect 5th (F) above it — the formula 1 3 4 5, sounding the notes B♭ D E♭ F. On the piano it sits at Bb (octave 3) and above in the library's voicing; the same 4 notes in any octave are still B♭add4.

Root
B♭
Quality
Added 4th
Formula
1 3 4 5
Notes
B♭ D E♭ F

On the keyboard

B♭add4 on the piano keyboard: B♭ D E♭ FB♭DE♭F

The notes of B♭add4

DegreeNoteInterval from the rootPitch
1B♭rootB♭3
3Dmajor 3rdD4
4E♭perfect 4thE♭4
5Fperfect 5thF4

Other 6ths & adds on B♭

B♭6B♭m6B♭6/9B♭m6/9B♭add2B♭add9B♭add11B♭m(add9)B♭m(add11)

Added 4th chords on every root

Cadd4D♭add4Dadd4E♭add4Eadd4Fadd4F♯add4Gadd4A♭add4Aadd4Badd4

Part of the chord reference. See also the scales and the keys.