# Music to Prompt

Describe a song as a prompt you can generate from, with style, instrument and mood tags.

> Canonical: https://aimusicis.com/music-to-prompt

## What music to prompt returns

### 1 credit

The price of describing one song. Credits come back if the run fails or times out.

### 4 tag groups

Styles, instruments, mood tags and a vocals line, beside a prompt of up to 500 characters that fits the music generator's description field.

### 11 output languages

English by default, or Spanish, French, German, Italian, Portuguese, Japanese, Korean, Chinese, Russian or Arabic for every field.

### 15 minutes

The longest song accepted, as a saved song or an upload of up to 50 MB in MP3, WAV, OGG, M4A, AAC or FLAC.

## Turn a song into a prompt in three steps

### Choose the song

Pick a finished song from My Music, upload an audio file, record one, or load a sample track. Its tempo and key are then measured on your device with the same analysis as the Key & BPM Finder, before anything is charged.

### Generate the prompt

Choose the output language and press Generate prompt. The song is checked as yours, then an AI model listens to it and writes the prompt. The measured tempo and key are handed over as facts, so they are stated exactly rather than guessed.

### Copy it or create a song

Copy the prompt alone, or the whole result with its tags, for another tool. Create a song with this prompt opens the AI Music Generator with the prompt filled in. Earlier prompts stay in History.

## Tools related to Music to Prompt

### [Key & BPM Finder](https://aimusicis.com/key-bpm-finder)

### [Beat Key Finder](https://aimusicis.com/beat-key-finder)

### [Beat Finder](https://aimusicis.com/beat-finder)

### [BPM Tapper](https://aimusicis.com/bpm-tapper)

## Music to prompt questions

### What does the music to prompt result contain?

A prompt of 40 to 70 words naming the genre, the era, the tempo feel, the lead instruments, the vocals and how the arrangement builds. Up to 5 style names and 8 instruments follow, then up to 8 tags for mood, era and texture, and a short description of the voice or the word Instrumental.

### Who uses music to prompt, and for what?

Producers who want a new song in the sound of a reference track, creators matching the feel of a channel or brand, and songwriters who hear a mood but cannot name the genre. It is the wrong tool for copying a melody, which Audio to MIDI does, for restyling the same song, which the AI Song Cover Generator does, or for tempo and key alone, which the free Key & BPM Finder reads without spending a credit.

### What are the limits of music to prompt?

The model describes what it hears, so a dense mix can hide an instrument and a blend of sub-genres can be named by its closest one. The measured tempo can read half or double the felt pulse on a slow or busy track; check it against the song before you generate. The prompt describes sound, never lyrics, and is kept to 500 characters.

### Why are tempo and key measured before the AI listens?

A listening model estimates tempo and key loosely. The page reads both from the audio on your device, the way the Key & BPM Finder does, and the model is told to use those values exactly. A file the analysis cannot read, or one longer than 10 minutes, is described by its tempo feel instead.

### Will the prompt copy the original song?

The prompt describes the sound, not the song. It never names the song, the artist or any real person, and it never quotes lyrics, so a song made from it is a new song with a similar feel.

### Can I use the prompt in other AI music tools?

Yes. Copy result puts the prompt and one line per tag group on your clipboard. In this app, Create a song with this prompt fills in the AI Music Generator, whose description field takes up to 500 characters, the length the prompt is kept to.

### What happens to my credit if a run fails?

A run that fails or times out returns its credit. A song you do not own, or audio that cannot be opened, is refused before anything is charged.

### Which songs can I describe?

Your own finished songs from My Music, or audio you upload or record, up to 15 minutes and 50 MB. Describe music you have the right to use.

### How many credits does Music to Prompt use?

Music to Prompt draws 1 credit per run.

_Last updated October 15, 2026_