Move your mouse over the chord names to see that chord
or click on a note on the piano to see a new group of chords.
C
C#
Db
D
D#
Eb
E
F
F#
Gb
G
G#
Ab
A
A#
Bb
B
C
C#
Db
D
D#
Eb
E
F
F#
Gb
G
G#
Ab
A
A#
Bb
B
C
C#
Db
D
D#
Eb
E
F
F#
Gb
G
G#
Ab
A
A#
Bb
B
C
C#
Db
D
D#
Eb
E
F
F#
Gb
G
G#
Ab
A
A#
Bb
B

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

C Chords

C (Major)

→ C
→ C5
→ Csus
→ Csus2
→ C6
→ C6/9

CM7 (Major Seventh)

→ CM7
→ CM9
→ Cadd9

C7 (Dominant)

→ C7
→ C7b5
→ C7#5
→ C9
→ C7b9
→ C7#9
→ C13

C+ (Augmented)

→ C+
→ C7#5

Cm (Minor)

→ Cm
→ Cm6

Cm7 (Minor 7th)

→ Cm7
→ Cm7b5
→ Cm7#5
→ Cm9
→ Cm7b9
→ Cm#7

Cdim (Diminished)

→ Cdim

Cdim7 (Diminished 7th)

→ Cdim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

C# Chords

C# (Major)

→ C#
→ C#5
→ C#sus
→ C#sus2
→ C#6
→ C#6/9

C#M7 (Major Seventh)

→ C#M7
→ C#M9
→ C#add9

C#7 (Dominant)

→ C#7
→ C#7b5
→ C#7#5
→ C#9
→ C#7b9
→ C#7#9
→ C#13

C#+ (Augmented)

→ C#+
→ C#7#5

C#m (Minor)

→ C#m
→ C#m6

C#m7 (Minor 7th)

→ C#m7
→ C#m7b5
→ C#m7#5
→ C#m9
→ C#m7b9
→ C#m#7

C#dim (Diminished)

→ C#dim

C#dim7 (Diminished 7th)

→ C#dim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

Db Chords

Db (Major)

→ Db
→ Db5
→ Dbsus
→ Dbsus2
→ Db6
→ Db6/9

DbM7 (Major Seventh)

→ DbM7
→ DbM9
→ Dbadd9

Db7 (Dominant)

→ Db7
→ Db7b5
→ Db7#5
→ Db9
→ Db7b9
→ Db7#9
→ Db13

Db+ (Augmented)

→ Db+
→ Db7#5

Dbm (Minor)

→ Dbm
→ Dbm6

Dbm7 (Minor 7th)

→ Dbm7
→ Dbm7b5
→ Dbm7#5
→ Dbm9
→ Dbm7b9
→ Dbm#7

Dbdim (Diminished)

→ Dbdim

Dbdim7 (Diminished 7th)

→ Dbdim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

D Chords

D (Major)

→ D
→ D5
→ Dsus
→ Dsus2
→ D6
→ D6/9

DM7 (Major Seventh)

→ DM7
→ DM9
→ Dadd9

D7 (Dominant)

→ D7
→ D7b5
→ D7#5
→ D9
→ D7b9
→ D7#9
→ D13

D+ (Augmented)

→ D+
→ D7#5

Dm (Minor)

→ Dm
→ Dm6

Dm7 (Minor 7th)

→ Dm7
→ Dm7b5
→ Dm7#5
→ Dm9
→ Dm7b9
→ Dm#7

Ddim (Diminished)

→ Ddim

Ddim7 (Diminished 7th)

→ Ddim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

D# Chords

D# (Major)

→ D#
→ D#5
→ D#sus
→ D#sus2
→ D#6
→ D#6/9

D#M7 (Major Seventh)

→ D#M7
→ D#M9
→ D#add9

D#7 (Dominant)

→ D#7
→ D#7b5
→ D#7#5
→ D#9
→ D#7b9
→ D#7#9
→ D#13

D#+ (Augmented)

→ D#+
→ D#7#5

D#m (Minor)

→ D#m
→ D#m6

D#m7 (Minor 7th)

→ D#m7
→ D#m7b5
→ D#m7#5
→ D#m9
→ D#m7b9
→ D#m#7

D#dim (Diminished)

→ D#dim

D#dim7 (Diminished 7th)

→ D#dim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

Eb Chords

Eb (Major)

→ Eb
→ Eb5
→ Ebsus
→ Ebsus2
→ Eb6
→ Eb6/9

EbM7 (Major Seventh)

→ EbM7
→ EbM9
→ Ebadd9

Eb7 (Dominant)

→ Eb7
→ Eb7b5
→ Eb7#5
→ Eb9
→ Eb7b9
→ Eb7#9
→ Eb13

Eb+ (Augmented)

→ Eb+
→ Eb7#5

Ebm (Minor)

→ Ebm
→ Ebm6

Ebm7 (Minor 7th)

→ Ebm7
→ Ebm7b5
→ Ebm7#5
→ Ebm9
→ Ebm7b9
→ Ebm#7

Ebdim (Diminished)

→ Ebdim

Ebdim7 (Diminished 7th)

→ Ebdim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

E Chords

E (Major)

→ E
→ E5
→ Esus
→ Esus2
→ E6
→ E6/9

EM7 (Major Seventh)

→ EM7
→ EM9
→ Eadd9

E7 (Dominant)

→ E7
→ E7b5
→ E7#5
→ E9
→ E7b9
→ E7#9
→ E13

E+ (Augmented)

→ E+
→ E7#5

Em (Minor)

→ Em
→ Em6

Em7 (Minor 7th)

→ Em7
→ Em7b5
→ Em7#5
→ Em9
→ Em7b9
→ Em#7

Edim (Diminished)

→ Edim

Edim7 (Diminished 7th)

→ Edim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

F Chords

F (Major)

→ F
→ F5
→ Fsus
→ Fsus2
→ F6
→ F6/9

FM7 (Major Seventh)

→ FM7
→ FM9
→ Fadd9

F7 (Dominant)

→ F7
→ F7b5
→ F7#5
→ F9
→ F7b9
→ F7#9
→ F13

F+ (Augmented)

→ F+
→ F7#5

Fm (Minor)

→ Fm
→ Fm6

Fm7 (Minor 7th)

→ Fm7
→ Fm7b5
→ Fm7#5
→ Fm9
→ Fm7b9
→ Fm#7

Fdim (Diminished)

→ Fdim

Fdim7 (Diminished 7th)

→ Fdim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

F# Chords

F# (Major)

→ F#
→ F#5
→ F#sus
→ F#sus2
→ F#6
→ F#6/9

F#M7 (Major Seventh)

→ F#M7
→ F#M9
→ F#add9

F#7 (Dominant)

→ F#7
→ F#7b5
→ F#7#5
→ F#9
→ F#7b9
→ F#7#9
→ F#13

F#+ (Augmented)

→ F#+
→ F#7#5

F#m (Minor)

→ F#m
→ F#m6

F#m7 (Minor 7th)

→ F#m7
→ F#m7b5
→ F#m7#5
→ F#m9
→ F#m7b9
→ F#m#7

F#dim (Diminished)

→ F#dim

F#dim7 (Diminished 7th)

→ F#dim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

Gb Chords

Gb (Major)

→ Gb
→ Gb5
→ Gbsus
→ Gbsus2
→ Gb6
→ Gb6/9

GbM7 (Major Seventh)

→ GbM7
→ GbM9
→ Gbadd9

Gb7 (Dominant)

→ Gb7
→ Gb7b5
→ Gb7#5
→ Gb9
→ Gb7b9
→ Gb7#9
→ Gb13

Gb+ (Augmented)

→ Gb+
→ Gb7#5

Gbm (Minor)

→ Gbm
→ Gbm6

Gbm7 (Minor 7th)

→ Gbm7
→ Gbm7b5
→ Gbm7#5
→ Gbm9
→ Gbm7b9
→ Gbm#7

Gbdim (Diminished)

→ Gbdim

Gbdim7 (Diminished 7th)

→ Gbdim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

G Chords

G (Major)

→ G
→ G5
→ Gsus
→ Gsus2
→ G6
→ G6/9

GM7 (Major Seventh)

→ GM7
→ GM9
→ Gadd9

G7 (Dominant)

→ G7
→ G7b5
→ G7#5
→ G9
→ G7b9
→ G7#9
→ G13

G+ (Augmented)

→ G+
→ G7#5

Gm (Minor)

→ Gm
→ Gm6

Gm7 (Minor 7th)

→ Gm7
→ Gm7b5
→ Gm7#5
→ Gm9
→ Gm7b9
→ Gm#7

Gdim (Diminished)

→ Gdim

Gdim7 (Diminished 7th)

→ Gdim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

G# Chords

G# (Major)

→ G#
→ G#5
→ G#sus
→ G#sus2
→ G#6
→ G#6/9

G#M7 (Major Seventh)

→ G#M7
→ G#M9
→ G#add9

G#7 (Dominant)

→ G#7
→ G#7b5
→ G#7#5
→ G#9
→ G#7b9
→ G#7#9
→ G#13

G#+ (Augmented)

→ G#+
→ G#7#5

G#m (Minor)

→ G#m
→ G#m6

G#m7 (Minor 7th)

→ G#m7
→ G#m7b5
→ G#m7#5
→ G#m9
→ G#m7b9
→ G#m#7

G#dim (Diminished)

→ G#dim

G#dim7 (Diminished 7th)

→ G#dim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

Ab Chords

Ab (Major)

→ Ab
→ Ab5
→ Absus
→ Absus2
→ Ab6
→ Ab6/9

AbM7 (Major Seventh)

→ AbM7
→ AbM9
→ Abadd9

Ab7 (Dominant)

→ Ab7
→ Ab7b5
→ Ab7#5
→ Ab9
→ Ab7b9
→ Ab7#9
→ Ab13

Ab+ (Augmented)

→ Ab+
→ Ab7#5

Abm (Minor)

→ Abm
→ Abm6

Abm7 (Minor 7th)

→ Abm7
→ Abm7b5
→ Abm7#5
→ Abm9
→ Abm7b9
→ Abm#7

Abdim (Diminished)

→ Abdim

Abdim7 (Diminished 7th)

→ Abdim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

A Chords

A (Major)

→ A
→ A5
→ Asus
→ Asus2
→ A6
→ A6/9

AM7 (Major Seventh)

→ AM7
→ AM9
→ Aadd9

A7 (Dominant)

→ A7
→ A7b5
→ A7#5
→ A9
→ A7b9
→ A7#9
→ A13

A+ (Augmented)

→ A+
→ A7#5

Am (Minor)

→ Am
→ Am6

Am7 (Minor 7th)

→ Am7
→ Am7b5
→ Am7#5
→ Am9
→ Am7b9
→ Am#7

Adim (Diminished)

→ Adim

Adim7 (Diminished 7th)

→ Adim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

A# Chords

A# (Major)

→ A#
→ A#5
→ A#sus
→ A#sus2
→ A#6
→ A#6/9

A#M7 (Major Seventh)

→ A#M7
→ A#M9
→ A#add9

A#7 (Dominant)

→ A#7
→ A#7b5
→ A#7#5
→ A#9
→ A#7b9
→ A#7#9
→ A#13

A#+ (Augmented)

→ A#+
→ A#7#5

A#m (Minor)

→ A#m
→ A#m6

A#m7 (Minor 7th)

→ A#m7
→ A#m7b5
→ A#m7#5
→ A#m9
→ A#m7b9
→ A#m#7

A#dim (Diminished)

→ A#dim

A#dim7 (Diminished 7th)

→ A#dim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

Bb Chords

Bb (Major)

→ Bb
→ Bb5
→ Bbsus
→ Bbsus2
→ Bb6
→ Bb6/9

BbM7 (Major Seventh)

→ BbM7
→ BbM9
→ Bbadd9

Bb7 (Dominant)

→ Bb7
→ Bb7b5
→ Bb7#5
→ Bb9
→ Bb7b9
→ Bb7#9
→ Bb13

Bb+ (Augmented)

→ Bb+
→ Bb7#5

Bbm (Minor)

→ Bbm
→ Bbm6

Bbm7 (Minor 7th)

→ Bbm7
→ Bbm7b5
→ Bbm7#5
→ Bbm9
→ Bbm7b9
→ Bbm#7

Bbdim (Diminished)

→ Bbdim

Bbdim7 (Diminished 7th)

→ Bbdim7

Piano Chord Megapack
by Nathan Andersen
(see testimonials)
1088 pages

Downloadable Price: $119.99

Printed, Bound & Mailed Price: $159.99

The Megapack includes all eight of my piano training books, plus the ChordLearn 1.0 software (for Windows). It's ideal for someone who wants to get all of my piano training materials at the best price. Books include:
  • How to Speed Read Piano Chord Symbols
  • More How to Speed Read Piano Chord Symbols
  • How to Play from a Fake Book without Gettin' the Blues
  • Learn to Play Piano By Ear
  • How to Read Musical Rhythm Like a Genius
  • The Secrets of Sight Reading Piano Music
  • Understanding the Blues
  • The Moonlight Sonata

See all my piano books

B Chords

B (Major)

→ B
→ B5
→ Bsus
→ Bsus2
→ B6
→ B6/9

BM7 (Major Seventh)

→ BM7
→ BM9
→ Badd9

B7 (Dominant)

→ B7
→ B7b5
→ B7#5
→ B9
→ B7b9
→ B7#9
→ B13

B+ (Augmented)

→ B+
→ B7#5

Bm (Minor)

→ Bm
→ Bm6

Bm7 (Minor 7th)

→ Bm7
→ Bm7b5
→ Bm7#5
→ Bm9
→ Bm7b9
→ Bm#7

Bdim (Diminished)

→ Bdim

Bdim7 (Diminished 7th)

→ Bdim7