Suno AI Prompting: Use Letter Case to Create Better Music

Did you know that a tiny detail in your Suno AI prompts can make a huge difference in the final song? The letter case you use—whether it's ALL CAPS, Title Case, or lower case—isn't just for looks. It's a powerful way to tell Suno what to prioritize, giving you more control over the style and quality of your music.

Why Letter Case Matters in Suno

Think of letter case as a way to add emphasis. By changing the capitalization of different words in your style prompt, you can signal their importance to the AI. This helps Suno better understand the genre, mood, and instrumentation you're aiming for, resulting in a song that’s much closer to your vision.

The Winning Formula for Prompts

After much experimentation, the community has found a simple yet effective formula for structuring prompts. For the best and most consistent results, organize your prompt elements like this:

• Genres in ALL CAPS: This gives the primary genre the highest priority, ensuring it defines the core of your song.
• Descriptors in Title Case: Words describing the mood, style, or energy (like High Energy, Sentimental, Aggressive) get medium priority. This makes them influential without overriding the main genre.
• Instruments in lower case: Specifying instruments this way ensures they are included in the track without dominating the mix or style.

Examples in Action

Let's see how this formula works compared to other approaches.

Best Practice: The Mixed-Case Formula

Here, we combine all three casing styles. Notice how the genres get the most emphasis.

Prompt:

FUNKY BASSLINE, Operatic NEW JACK SWING, Rhythmic POWER METAL, High Female Vocals, G-FUNK

Result: This prompt gives clear, tiered instructions, leading to a more nuanced and well-defined track.

Listen to the example on Suno

Alternative: Using Only Title Case

What happens when everything has the same priority? The result can be good, but sometimes less focused.

Prompt:

High Energy Big Band, Sexy Anthemic Psychobilly, Uncommon Time Signatures

Result: In this case, Suno has to guess which element is most important. While the output can be interesting, it might not capture the specific hierarchy you intended.

Listen to the example on Suno

Key Takeaways for Better Prompts

1. Prioritize with Case: Use ALL CAPS for genres, Title Case for descriptors, and lower case for instruments to guide the AI effectively.
2. Combine for Quality: Mixing all three letter case styles in a single prompt generally produces a higher-quality, more accurate song.
3. Experiment!: While this formula is a fantastic starting point, music is subjective. Don't be afraid to experiment with different combinations to discover unique sounds and find what works best for your creative ideas.

By mastering this simple letter case strategy, you can significantly improve your prompting skills and unlock a new level of creativity with Suno AI.