The Happiest Christmas Tree

Summary

Jazz musicians love transforming simple melodies into rich, swinging masterpieces. Today, we dive deep into reharmonizing the Christmas song “I’m the Happiest Christmas Tree” in a bebop style inspired by legends like Charlie Parker and Dizzy Gillespie. This guide covers everything from rhythmic feel and harmonic analysis to advanced bebop chord substitutions and improvisation techniques.

Introduction to Reharmonization and Bebop Style

Reharmonization involves changing the chords underpinning a melody to create new emotional and musical textures. Jazz bebop reharmonization, in particular, introduces chromaticism, secondary dominants, and extended chord tones to enrich simple songs.

Why Reharmonize a Christmas Song?

Christmas songs like “I’m the Happiest Christmas Tree” are typically harmonized simply to make them singable for families and congregations. Reharmonizing these tunes offers musicians a fun challenge to explore harmonic creativity, rhythmic complexity, and improvisation, turning a straightforward melody into a swinging jazz head.

Understanding the Original Song and Its Swing Feel

Before reharmonizing, it’s crucial to analyze the original song’s form, rhythm, and harmony.

The Swing Groove: Bass and Drums Interaction

A key factor in swing feel is the interaction between rhythm section instruments—particularly bass and drums. In the Nat King Cole version of “I’m the Happiest Christmas Tree,” the bass plays a “bass in two” pattern (emphasizing beats 1 and 3) with some rhythmic activity, while the drummer swings in 4/4 time using brushes on the snare.

This combination creates a distinctive groove where the bass anchors the pulse simply but the drums keep the swing momentum alive. A similar rhythmic approach is found in John Coltrane’s “Blue Train,” illustrating how subtle rhythmic contrasts between rhythm section instruments produce dynamic swing.

Song Form and Melody

“I’m the Happiest Christmas Tree” follows a classic AABA 32-bar form, a staple in jazz standards. The melody features simple, lyrical phrasing with some anticipations and accented notes, which contribute to its swinging interpretation despite the straightforward rhythm.

Harmonic Analysis of the Original Progression

The song is harmonized in the key of C major with a very basic chord progression emphasizing the I (tonic), IV (subdominant), and V (dominant) chords.

Basic Chords and Cadences

• Tonic chords: C major (I)
• Subdominant chords: D minor (ii), F major (IV)
• Dominant chords: G7 (V7)

The harmonic movement mainly revolves around:

• Plagal cadence (IV-I): A softer resolution than the dominant-tonic cadence.
• Perfect cadence (V-I): A strong resolution commonly used in jazz and classical music.
• Secondary dominants and passing diminished chords are minimal or absent in the original.

Modulation and Pivot Chords

During the bridge, the song modulates briefly to F major, introducing chords like F major 7 and F# diminished 7, which function as passing or pivot chords, adding harmonic interest.

Enhancing Harmony: Bebop Reharmonization Techniques

To capture the bebop essence, the chords are enriched and reharmonized with extended harmonies, secondary dominants, and chromatic passing chords.

Adding Chord Extensions and Alterations

• Replace basic triads with four-note chords, e.g., Cmaj6 instead of Cmaj7 to avoid clashes with the melody’s root.
• Use G7♭13 instead of plain G7 for a distinctive bebop sound.
• Introduce diminished passing chords and secondary dominants to create tension and forward motion.

Introducing Bebop Harmonic Vocabulary

• II-V-I progressions become the backbone of the reharmonization.
• Use backdoor dominants (♭VII7 to I), common in bebop, to add smooth chromatic resolutions.
• Apply tritone substitutions on dominant chords for chromatic color and surprise.

Example progression in bebop style for the first four bars:
| Cmaj6 | B♭7 (backdoor dominant) | Fmaj7 | G7♭13 |

Modulating with Secondary Dominants

The reharmonization explores modulations between C major and F major, using secondary dominants like:

• C7 (V7 of IV) leading to Fmaj7
• B7 (V7 of iii) leading to E minor 7

This layered harmonic movement creates a richer harmonic landscape, typical of bebop.

Rhythmic and Melodic Development

Syncopation and Anticipation

In bebop, rhythmic interest comes from:

• Syncopated accents and anticipations on off-beats.
• Displacement of melodic motifs to create surprises.
• Rhythmic variation within repeated melodic phrases.

The reharmonized melody maintains recognizable motifs but adds eighth-note subdivisions and syncopated phrasing to enhance swing.

Motivic Improvisation

Improvise around short melodic motives, developing them rhythmically and melodically across the form. This technique makes solos coherent and engaging.

Practical Application: Playing and Improvising Over the Reharmonized Changes

Practicing the Bass Line

• Practice bass in two and bass in four patterns over the  chords.
• Emphasize the root and chord tones while incorporating rhythmic variations.

Using Arpeggios and Chromatic Passing Tones

• Target chord tones (root, third, seventh) with arpeggios.
• Use chromatic passing tones between chord tones, especially around major thirds, to add bebop flavor.

Writing and Analyzing Bebop Etudes

An etude based on “I’m the Happiest Christmas Tree” can serve as a practice tool combining:

• Bebop chord progressions with secondary dominants and substitutions.
• Motivic improvisation techniques.
• Chromatic passing tones and arpeggio exercises.

Practicing such etudes helps internalize bebop vocabulary and prepares you for spontaneous improvisation.

Summary: Key Takeaways for Jazz Musicians

• Simple melodies like Christmas songs can be transformed with bebop reharmonization.
• Understanding the interaction between rhythm section instruments is key to achieving swing.
• Bebop harmony relies heavily on extended chords, secondary dominants, tritone substitutions, and chromatic passing chords.
• Rhythmic variation and motivic development enliven melodies and improvisations.
• Practice with etudes and backing tracks to internalize these concepts.

Frequently Asked Questions (FAQ)

Q1: Why choose Cmaj6 over Cmaj7 in bebop reharmonization?
A: Cmaj6 avoids clashes with the melody’s root note, making it easier for singers and instrumentalists to blend harmoniously.

Q2: What is a backdoor dominant?
A: A backdoor dominant is a dominant chord built on the bVII scale degree that resolves to the tonic, offering a smooth chromatic alternative to V7-I cadences.

Q3: How do tritone substitutions work in bebop?
A: Tritone substitutions replace a dominant chord with another dominant chord a tritone away, adding chromaticism and tension-release effects.

Conclusion

Reharmonizing “I’m the Happiest Christmas Tree” in bebop style not only breathes new life into a simple Christmas tune but also provides a comprehensive learning experience in jazz harmony, rhythm, and improvisation. Whether you’re a pianist, guitarist, or horn player, exploring these reharmonization techniques will deepen your understanding of bebop language and improve your musical expression this holiday season and beyond.

Enjoy experimenting with the chords, rhythms, and melodies, and keep swinging!