BookatlasPiano Rabbit Hole: Improvisation Theory & Practice

Workshop 70 — From Lead Sheet to Full Solo-Piano Arrangement: Melody First, Bass Second, Inner Voices Third, Chord Symbols Last

Workshop 69 ended with an important idea:

A complete solo-piano arrangement does not have to begin by choosing a chord symbol for every melody note.

That is exactly what we will do now.

This workshop is a synthesis of almost everything we have learned so far:

But the order matters.

Today we deliberately use this workflow:

Melody → structural notes → bass → guide-tone lines → middle voices → harmonic labels → texture → reharmonization → form.

The chord symbol comes surprisingly late.

The central lesson is:

An arrangement should sound like several musical lines cooperating, not like a melody sitting on top of a spreadsheet of chord symbols.

70.1Start with melody aloneTake any legal lead sheet or melody you know.61 words70.2Structural versus decorative melodySuppose a phrase contains:52 words70.3Level 1 — mark the melody skeletonPlay only the structural notes.32 words70.4Why skeleton mattersThe skeleton tells you where harmony has the strongest responsibility.37 words70.5Level 2 — reduce melody rhythmTake the same phrase.29 words70.6Do not permanently simplify the tuneThis is analysis.19 words70.7Next: bass onlyDo not choose full chords yet.36 words70.8Level 3 — roots onlyIf melody is in C major, begin with simple functional bass:32 words70.9Test bass with melodyPlay:25 words70.10Outer voices firstThe arrangement now consists of:35 words70.11Level 4 — improve bass contourPerhaps root positions give:35 words70.12Bass should be singablePlay LH alone.23 words70.13Level 5 — use inversions deliberatelySuppose harmony can remain tonic while bass moves:40 words70.14Do not confuse bass movement with harmonic movementBass can move while function stays tonic.26 words70.15Level 6 — choose cadence bass carefullyPhrase endings matter disproportionately.34 words70.16Now add one inner voiceDo not add a chord.31 words70.17Level 7 — guide-tone lineSuppose bass suggests:27 words70.18Play only three voicesLH bass.22 words70.19Why three voices are enoughYou now have:29 words70.20Level 8 — add second guide-tone lineIf needed, add another middle voice.39 words70.21Now — and only now — ask for chord namesLook at the vertical combinations.33 words70.22This reverses a common lead-sheet habitTypical approach:28 words70.23Level 9 — melody determines extensionSuppose:30 words70.24AnotherBass F.20 words70.25This is much better than adding extensions randomlyDo not decorate a chord because:22 words70.26Level 10 — preserve melody over multiple bassesSuppose melody holds:31 words70.27But don't use all fourThis is the arranger's discipline.25 words70.28Level 11 — plan harmonic rhythmNow decide:31 words70.29Do not change harmony merely because melody movedYour bass may stay.30 words70.30Level 12 — use color changes without functional changesSuppose root remains C.26 words70.31Now choose textureSo far we have only designed pitches and lines.55 words70.32Level 13 — texture follows phrase importanceA useful default:21 words70.33Avoid “same texture forever”Even a beautiful voicing becomes dull if applied continuously.15 words70.34Level 14 — build a texture mapFor an 8-bar phrase, decide:36 words70.35This plan can precede exact voicingsYou do not need every note yet.25 words70.36Level 15 — register mapAlso decide:26 words70.37Register is formA melody repeated one octave higher automatically feels like development.16 words70.38Level 16 — create an intro from the tune itselfInstead of generic:30 words70.39Example methodTake three-note motif from melody.22 words70.40Level 17 — create an ending from the phrase DNATake final melody fragment.24 words70.41Level 18 — reharmonize only after baseline arrangement worksThis is critical.35 words70.42Reharm should solve a problemGood reasons:49 words70.43Level 19 — substitution by bass requirementSuppose bass wants:14 words70.44Level 20 — substitution by inner-line requirementSuppose inner line wants:15 words70.45Level 21 — substitution by melody colorSuppose melody holds:24 words70.46Level 22 — substitution by harmonic rhythmPerhaps phrase is too static.22 words70.47Level 23 — substitution by formFirst chorus: plain G7→C.17 words70.48But preserve hierarchyDo not make early chorus more harmonically elaborate than climax unless that is intentional.20 words70.49Level 24 — decide groove only after harmonic skeleton is understoodNow ask:32 words70.50This is one of the course's deepest distinctionsSong26 words70.51Level 25 — build the same skeleton in two stylesUse identical:24 words70.52Version A — balladLH: roots/tenths.14 words70.53Version B — swingLH: walking bass.21 words70.54Level 26 — build a third version: bossaLH: root/fifth or syncopated bass.18 words70.55This is the test of genuine arranging understandingIf your harmony only works in one texture:28 words70.56Level 27 — build a fourth version: funkSimplify harmonic rhythm.39 words70.57Structure is not sacred notationWe build a baseline to understand the tune.24 words70.58Level 28 — arrange from four layersFor every phrase, think:52 words70.59Add a fifth layer: rhythmNow ask:32 words70.60Level 29 — staggered arrivalTarget chord: Fmaj9.41 words70.61Level 30 — remove a layerAt any point, ask:28 words70.62The solo-piano illusionOne pianist cannot literally be:26 words70.63Level 31 — role rotationPhrase 1: melody + bass.32 words70.64Level 32 — prioritize one layer per momentAt any moment, choose a foreground:31 words70.65Level 33 — create an intensity graphFor a 32-bar arrangement, rate each phrase:30 words70.66Intensity is multidimensionalHigher intensity can mean:36 words70.67Level 34 — build climax through bass, not chordsKeep harmony simple.19 words70.68Level 35 — build climax through melody textureBass unchanged.14 words70.69Level 36 — build climax through harmonic rhythmTexture unchanged.14 words70.70Level 37 — build climax through register onlyMove melody:20 words70.71Level 38 — combine two intensity parametersFor example:16 words70.72Avoid changing everything simultaneouslyIf:25 words70.73Level 39 — design the returnAfter climax:32 words70.74Level 40 — sparse ending after rich arrangementOne of the most powerful endings:21 words70.75Full workflow — Pass 1Take a new tune.12 words70.76Pass 2Play melody + roots.10 words70.77Pass 3Improve bass line.10 words70.78Pass 4Add one guide-tone line.7 words70.79Pass 5Add second inner voice only where needed.11 words70.80Pass 6Decide harmonic rhythm.13 words70.81Pass 7Choose style and accompaniment behavior.14 words70.82Pass 8Design texture arc:10 words70.83Pass 9Add selective reharmonization.13 words70.84Pass 10Create:10 words70.85Pass 11Play complete arrangement.16 words70.86Pass 12Listen without piano46 words70.87Practice exercise — 8-bar micro-arrangementTake any 8-bar melody.33 words70.88Exercise — no chord symbolsArrange eight bars entirely by ear.22 words70.89Exercise — symbols first versus lines firstMake two versions.29 words70.90Exercise — three basses under one melodyTake four bars.30 words70.91Exercise — three harmonic rhythmsSame phrase.20 words70.92Exercise — three texturesSame exact harmony.20 words70.93Ear Drill — outer voices onlyRecord melody + bass.22 words70.94Ear Drill — add one guide toneNow add one middle line.22 words70.95Ear Drill — excessive harmonyTake your arrangement.23 words70.96Ear Drill — unnecessary chord changeRemove one passing chord.24 words70.97Apply the workflow to “Happy Birthday”This is our perfect public-domain laboratory.79 words70.98Apply the workflow to “Mack the Knife”Use your legal lead sheet/ear-learned melody.69 words70.99Apply the workflow to “The Bare Necessities”Start with the tune's playful phrasing.63 words70.100The major milestoneWe have spent many workshops learning:68 wordsWorkshop 70 mini-test1. Why does this workflow delay chord symbols until relatively late?416 words
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