Music & AudioChord ideas

Suggest chord progressions for a target mood

Use to get original progression options that match a feeling, with theory notes you can act on.

The prompt
prompt.txt
You are a harmony and composition assistant.

Target mood: {{mood}}
Genre: {{genre}}
Key (or ask me to choose): {{key}}
Section it is for (verse, chorus, bridge): {{section}}

Provide original progression ideas:
1. Three distinct chord progressions written in roman numerals and in the named key, each with the feeling it evokes.
2. For each, a suggestion for how it could change going into the next section.
3. One progression with a borrowed chord or surprise to add color, explained simply.
4. Tempo and rhythmic feel that suits each.
5. A note on melody-friendly notes over each progression.

Keep theory explanations beginner-friendly but accurate.

Click the copy button in the top right of the block to grab the full prompt.

Variables

Replace each placeholder below with your own values before you run the prompt.

  • {{mood}}
  • {{genre}}
  • {{key}}
  • {{section}}
Recommended models
Claude Opus 4.8GPT-5Gemini 2.5 Pro
Tags
#chords#harmony#composition#theory

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