# Mureka Instrumental - Core.Today AI API

> Mureka instrumental generation via fal.ai. Produces an instrumental track from a text description with the chosen Mureka model version (7.6 / 8 / 9 / 9.5). Returns an MP3 file.

- **Provider**: Mureka
- **Model ID**: mureka/api/generate/instrumental
- **Category**: Audio & TTS
- **Credits**: 520 per generation (mureka-9.5); mureka-9/8 160, mureka-7.6 100
- **Speed**: Medium
- **Quality**: High

## Features
- Instrumental-only generation from a description
- Four model versions with tiered pricing
- Same engine as Mureka Song without vocals

## Use Cases
- Background music and beds
- Backing tracks to sing over
- Game and app soundtracks

## API Endpoint

Base URL: https://api.core.today/v1
Create Prediction: POST /predictions
Get Status: GET /predictions/{job_id}

## Authentication
Header: X-API-Key: YOUR_API_KEY

## Input Parameters

### Required
- **prompt**: string - Description of the desired instrumental (genre, mood, instruments, tempo)

### Optional
- **model**: string (default: mureka-9.5) - Model used to generate the instrumental
  Options: mureka-9.5, mureka-9, mureka-8, mureka-7.6

## Examples

### Core.Today theme (instrumental)
The same company-theme prompt given to every instrumental model — compare the results side by side
```json
{
  "model": "mureka/api/generate/instrumental",
  "input": {
    "prompt": "Upbeat K-pop electro-pop company jingle instrumental, 128 BPM, synth brass stabs, punchy drums, bright synth lead, catchy hook, fun and playful",
    "model": "mureka-9.5"
  }
}
```

### Cinematic orchestral
Uplifting orchestral piece with the top model
```json
{
  "model": "mureka/api/generate/instrumental",
  "input": {
    "prompt": "Uplifting cinematic orchestral piece with soaring strings, brass swells and driving percussion",
    "model": "mureka-9.5"
  }
}
```

## Response Format
```json
{
  "job_id": "abc123",
  "status": "pending | processing | completed | failed",
  "result": "URL or data (when completed)"
}
```

## Usage Flow
1. POST /predictions with model and input -> receive job_id
2. GET /predictions/{job_id} -> poll until status is completed or failed
3. Result contains output URL(s)

## Tips
- Name the genre, instruments and tempo; the model fills in the arrangement
- mureka-7.6 at 100 credits is a good drafting tier
- Need vocals? Use Mureka Song with lyrics instead