BPM and Key in AI Song Prompts: When They Help and How to Choose

What BPM changes

Tempo (beats per minute) changes the energy and the groove. It matters most in rhythm-driven genres: reggaeton, dance, trap, cumbia. In beat mode you can set it from 60 to 180 BPM; in songs, add it to the style (for example, 96 BPM).

Typical ranges (approximate)

• Ballads: 60–80
• Lo-fi, boom bap: 70–95
• Reggaeton: 88–100
• Pop: 95–125
• Bachata: 120–140
• House: 120–128
• Trap, drill: 130–150 (half-time feel)

These are starting points, not rules.

What the key changes

The key decides how high or low the melody sits. It matters if you will sing the song later, or if you need it to match another track.

Choosing a key for your voice

Sing a comfortable middle note, find it on a piano app, and choose a key around it. If the AI version feels too high for you, try a key two or three steps lower.

When to leave them out

If you do not care about the exact tempo or key, leave them out: the model will choose values that fit the genre. Over-specifying can make results stiffer.

Try it in MixingMusic

Create your song with the Suno V6 engine: 1 free song up to 2:30 with its stems, two versions of every song, and mixing and mastering in the same account. Songs and recordings are kept for 30 days and stems for 7 days, so download what you want to keep.

MixingMusic.AI uses the Suno V6 model through KIE.ai. MixingMusic.AI is not affiliated with or endorsed by Suno; Suno is a trademark of its owner.