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SongfindingSongwriting craft, one decision at a time

Verse · Technique · 6 Oct 2026 · By The Song Desk

The Dynamics Map: Arrangement Decisions Made While Writing

动态地图：在写作过程中做编曲决定 — 用中文读这一篇

Arrangement decisions made after the song is finished are usually repairs. Made while the song is being written they are structure. A dynamics map is a one-page plan, drawn before the second verse is written, that says what enters and leaves in each section — and it changes what the lyric is allowed to do.

Key / scaleD major (D–A–Bm–G), drums enter at verse two
Rhyme schemeAABB in verse one, ABAB in verse two
Form56 bars · 8 parts
StageVerse

Song structure

56 bars
  1. INTRO
  5. VERSE
  13. CHORUS
  21. VERSE
  29. CHORUS
  37. BRIDGE
  45. CHORUS
  53. OUTRO
  1. 1
  5. 5
  9. 9
  13. 13
  17. 17
  21. 21
  25. 25
  29. 29
  33. 33
  37. 37
  41. 41
  45. 45
  49. 49
  53. 53
Structure strip for The Dynamics Map: Arrangement Decisions Made While Writing: Intro 4 bars, Verse 8 bars, Chorus 8 bars, Verse 8 bars, Chorus 8 bars, Bridge 8 bars, Chorus 8 bars, Outro 4 bars
Segments drawn to scale in bars, with the bar ruler underneath.

Draw the map in five columns

Use one row per section and one column per element. Keep it to five columns so the map stays readable at a glance while you are writing.

SectionDrumsBassGuitarVocal
Intro (4)—Root notes, whole notesFingerpicked—
Verse 1 (8)—Root and fifth, half notesFingerpickedSolo, dry
Chorus (8)Full kit, no crashEighth notesStrummedDouble-tracked
Verse 2 (8)Kick and hat onlyEighth notesStrummed, mutedSolo, one harmony on line 4
Bridge (8)Dropped out at bar 5Whole notesArpeggiosSolo, close
Final chorus (8)Full kit with crashEighth notes, walkingStrummedTwo harmonies

Every element gets exactly one change per section

The rule that keeps a map from becoming a wish list: each element may change at most once per section, and no section may change more than three elements total. If your map shows the drums doing three different things in one verse, you have written an arrangement, not a plan, and nobody will be able to hear the structure through it.

This is also why the two verses in the example are mapped differently. Verse one is the only section with nothing on drums. Verse two brings in a kick and a hat, which is one change on one element and is enough to tell the listener the song has moved.

The map constrains the lyric

A verse mapped as 'no drums, one vocal, fingerpicked guitar' cannot carry a lyric with six stressed syllables per line — it will sound frantic over that much space. Mapping before writing tells you the line length you can afford, which is far cheaper than discovering it in the studio.

The reverse is also true: the final chorus in the example has two harmony vocals, which means the lead line must be short enough for a second voice to track it. Any line with an unusual rhythm will fight the harmony.

  • Sparse sections take longer lines; dense sections take shorter ones.
  • Any section with a harmony vocal needs a lead line a second voice can follow in real time.
  • Bridge mapped as 'close vocal' means no yelling — write it quiet on purpose.

Redraw the map when the lyric changes

The map is not a contract. If a verse ends up needing an extra bar of silence, the map changes and the elements realign. But redraw it on paper rather than carrying the change in your head, because the value of the map is entirely in being able to see four sections at once. A map you remember is not a map.

Carry these

  1. Map drums, bass, guitar, and vocal across every section before writing verse two.
  2. Each element changes at most once per section; three changes total is the ceiling.
  3. The map sets the line length you can afford — sparse sections take longer lines.

Questions that come up here

What if I am writing alone with one instrument?

Map it anyway, using dynamics and register as substitutes. 'Guitar: strummed at the fifth fret' versus 'guitar: single notes at the second fret' is a real arrangement change when there is only one instrument, and mapping it prevents the common failure of playing the same thing for three minutes.

How detailed should the map be for a demo?

Less detailed than for a full production, but not less ordered. For a demo, keep the two columns that define the song's shape — drums and vocal — and leave the rest blank. A demo map with two columns still tells you which sections are exposed and which are full, which is the whole point.

Same workbench

Spotted something wrong, or know a record this example comes from? Write to [email protected], or use the contact page.

The two languages here are written separately rather than translated line by line, so the examples and the working vocabulary differ where the language does.

This is a working notebook on songwriting craft, not professional advice. What follows describes what happened in particular songs — test it at your own desk rather than reading it as a rule for your music.