Standards

I Guess I'll Have To Change My Plan chords & key

Key
C major
Form
ABC
Bars
20
Groove
Ballad
Time signature
4/4

“I Guess I'll Have To Change My Plan” is a jazz standard by Arthur Schwartz. It is usually played in C major as a ballad, and the 20-bar ABC form has 3 sections. Harmonically it contains 3 major ii–V–I cadences, uses 16 different chords and moves between the key centres C major and F major. In this atlas it appears on 23 album tracks.

Chord changes

Showing in: Concert (C) — C major

A
Cmaj7G7
Cmaj7G7
Cmaj7Am7
Dm7G7
Dm7G7
Em7Am7
D13
Dm7G7
B
Cmaj7G7
Cmaj7
Gm7C7
Fmaj7
C
F6Fm6
Em7E♭dim7
Em7E♭dim7
Dm7G7
Cmaj7G7
B♭7A7
D7G7
C6G7

Changes as commonly played (concert pitch). Your band's version may differ.

Harmonic analysis

3Major ii–V–I
0Minor ii–V–i
6ii–V moves
0Tritone substitutions
2Dominant chains
16Different chords

Most used chords

  • G7×10
  • Cmaj7×6
  • Dm7×4
  • Em7×3
  • Am7×2
  • E♭dim7×2

Key centres reached by ii–V

C major and F major

Recorded on these albums

1952 A Band Is Born
Billy May · “I Guess I'll Have to Change My Plan”
1957 A Swingin’ Affair!
Frank Sinatra · “I Guess I’ll Have to Change My Plans”
1958 Julie Is Her Name, Volume Two
Julie London · “I Guess I’ll Have to Change My Plan”
1959 Count Basie and His Orchestra Swings / Tony Bennett Sings
Basie / Bennett · “I Guess I’ll Have to Change My Plans”
1961 Love Swings
Bobby Darin · “I Guess I'll Have to Change My Plan”
1962 My Kind of Music
Mel Tormé · “I Guess I'll Have to Change My Plan”
1975 Back to the Roots
Kay Starr · “I Guess I'll Have to Change My Plans”
1980 The Dolphin Has A Message
Bud Freeman
1986 Solo Flight
Bucky Pizzarelli · “I Guess I'll Have to Change My Plan”
1989 Tony Bennett with the Count Basie Orchestra
Tony Bennett with The Count Basie Orchestra · “I Guess I’ll Have to Change My Plans”
1990 Tony Bennett in Concert With Count Basie
Tony Bennett · “I Guess I’ll Have to Change My Plans”
1992 The Jazz Giants
Lester Young · “I Guess I'll Have to Change My Plan”
1992 Live at Maybeck Recital Hall, Volume Sixteen
Hank Jones · “I Guess I'll Have to Change My Plan”
1992 Mel Tormé and Friends: Recorded Live at Marty’s, New York City
Mel Tormé · “I Guess I’ll Have to Change My Plan”
1993 Steppin’ Out
Tony Bennett · “I Guess I’ll Have to Change My Plan”
1999 Songs for Hip Lovers
Woody Herman · “I Guess I'll Have to Change My Plans”
1999 Let Yourself Go: Celebrating Fred Astaire
Stacey Kent · “I Guess I’ll Have to Change My Plan”
2000 A Band Is Born / Big Band Bash
Billy May · “I Guess I'll Have to Change My Plan”
2002 Sing! Sing! Sing!
John Pizzarelli · “I Guess I'll Have to Change My Plan”
2006 The Tatum Group Masterpieces
Art Tatum · “I Guess I'll Have to Change My Plans”
2012 It’s a Wonderful World
Stacey Kent · “I Guess I’ll Have to Change My Plan”
2018 Don't Look Back in Anger
Bobby Darin
2018 Four Classic Albums (Second Set)
Lester Young · “I Guess I'll Have to Change My Plan”

Standards with similar changes

Similarity of the chord progression, independent of key.

TitleComposerKeyFormGroove
I Like The Likes Of You 31% Vernon Duke E♭ major AABA · 32 Medium swing
I Want To Be Happy 30% Vincent Youmans C major AABA · 32 Medium-up swing
It's Magic 30% Jule Styne B♭ major ABCD · 32 Ballad
Jeepers Creepers 30% Harry Warren B♭ major AABA · 34 Medium swing
A Certain Smile 29% Fain-Webster F major ABAC · 32 Medium swing
Candy 29% David-Whitney-Kramer B♭ major AABA · 32 Medium swing
The Lady's In Love With You 29% Burton Lane G major AABA · 32 Medium swing
Eclypso 28% Tommy Flanagan E♭ major AABA · 32 Latin/swing

Frequently asked questions

What key is I Guess I'll Have To Change My Plan in?

I Guess I'll Have To Change My Plan is usually played in C major. For B♭ instruments that is D major, for E♭ instruments A major.

Who wrote I Guess I'll Have To Change My Plan?

I Guess I'll Have To Change My Plan was written by Arthur Schwartz.

What is the form of I Guess I'll Have To Change My Plan?

I Guess I'll Have To Change My Plan has 3 sections (ABC) with 20 bars in total.

How fast is I Guess I'll Have To Change My Plan played?

The usual groove is Ballad.

What are the chord changes to I Guess I'll Have To Change My Plan?

The opening bars are Cmaj7 G7 | Cmaj7 G7 | Cmaj7 Am7 | Dm7 G7. The full chart above can be transposed to any key.