Recipe catalog / phrase-complete

Check whether a phrase has closed

Does recentNotes form a complete musical phrase that is ready to cadence or rest, or is it still open, given any meter supplied?

A generation loop needs to know whether the line it has produced can pause, cadence, or hand off to a new idea, or whether it should keep the phrase going.

Explore this recipe interactively · Source and implementation guide

Use phrase-complete in TypeScript

Install with npm install jev-recipes. Requires Node.js 22.9 or newer and ES modules. Set TYPESAFE_API_KEY in your server environment for live calls, which send input to TypeSafe and use API quota. See the installation guide.

import { phraseComplete } from 'jev-recipes/phrase-complete';

const result = await phraseComplete({
  "recentNotes": "C major. E4 D4 C4 D4 | E4 E4 E4 (half) | D4 D4 E4 D4 | C4 (whole note, held)",
  "meter": "4/4",
  "minConfidence": 0.8
});
console.log(result);

Input contract

{
  "input": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": "object",
    "properties": {
      "recentNotes": {
        "type": "string"
      },
      "meter": {
        "type": "string"
      },
      "minConfidence": {
        "type": "number",
        "minimum": 0,
        "maximum": 1
      }
    },
    "required": [
      "recentNotes"
    ]
  },
  "result": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": "object",
    "properties": {
      "model": {
        "type": "string"
      },
      "usage": {
        "type": "object",
        "properties": {
          "input_tokens": {
            "type": "integer",
            "minimum": 0,
            "maximum": 9007199254740991
          },
          "output_tokens": {
            "type": "integer",
            "minimum": 0,
            "maximum": 9007199254740991
          }
        },
        "required": [
          "input_tokens",
          "output_tokens"
        ],
        "additionalProperties": false
      },
      "status": {
        "type": "string",
        "enum": [
          "ready",
          "review"
        ]
      },
      "probability": {
        "type": "number",
        "minimum": 0,
        "maximum": 1
      },
      "confidence": {
        "type": "number",
        "minimum": 0,
        "maximum": 1
      },
      "verdict": {
        "type": "string",
        "enum": [
          "complete",
          "open"
        ]
      }
    },
    "required": [
      "model",
      "usage",
      "status",
      "probability",
      "confidence",
      "verdict"
    ],
    "additionalProperties": false
  }
}

Saved example result

This hand-authored response demonstrates the contract. It is not a model accuracy measurement. Run it without an API key: npx jev-recipes demo phrase-complete.

{
  "model": "demo-fixture",
  "usage": {
    "input_tokens": 0,
    "output_tokens": 0
  },
  "status": "ready",
  "probability": 0.91,
  "confidence": 0.91,
  "verdict": "complete"
}

Evaluation evidence

Use the evaluation guide to measure this decision on your own labeled cases.

Limitations

• Judges closure from note names, rhythms, and any annotations in the text. It does not identify the key, compute scale degrees, or count beats; state the key and bar position in the text when they matter.
• A phrase can be heard as complete and still be musically better continued. The verdict reports readiness to close, not whether closing is the best choice.
• Phrase conventions vary by style; a blues line and a chorale close differently.

Related recipes

• step-complete: Use step-complete when supplied evidence must establish a stated completion condition, rather than judging musical closure from the notes themselves.
• resolution-check: Use resolution-check to detect whether a customer reports an issue as resolved, not whether a melody has come to rest.