π€ Vocal Control (Critical Techniques)
Vocals are the #1 pain point for users. ACE-Step vocals require specific techniques to control properly.
πΆ Force Singing vs. Talking
Default behavior: ACE-Step may add spoken word, rap, or talk-singing unless you specify otherwise.
β
To Get Melodic Singing:
sung vocals, melodic singing, clear pitch, sustained notes, no spoken word, no talking
π« To Remove Vocals Entirely:
instrumental only, no vocals, no singing, no voice, pure music
π¨ Control Vocal Timbre & Character
Be specific about the vocal sound you want:
- Airy & Soft: "soft female vocals, airy, breathy, intimate, whisper-like"
- Powerful & Bold: "powerful belting vocals, bright tone, strong projection, clear enunciation"
- Warm & Deep: "male baritone, warm, intimate, rich tone, smooth delivery"
- Raw & Emotional: "raspy vocals, emotional, gritty, raw, vulnerable"
- Clean & Polished: "clean vocals, professional, clear tone, studio quality"
π΅ Avoid Unwanted Choir/Harmony Bleed
β οΈ Warning: ACE-Step often adds background vocals, harmonies, or choir elements unless explicitly prevented.
β
For Solo Vocals Only:
solo vocal only, single voice, no background vocals, no choir, no harmonies, no vocal layers
β¨ For Intentional Harmonies:
lead vocal with harmonies, 3-part harmony, choir backing, vocal layers
π Get Stable Pronunciation with Lyrics
ACE-Step sometimes struggles with lyric pronunciation. Follow these rules:
- β
Keep lines short (5-8 words max per line)
- β
Avoid complex multisyllabic words (simplify vocabulary)
- β
Use repetition (helps model learn pronunciation)
- β
Add phonetic hints when needed ("love" becomes "luv" if mispronounced)
- β Avoid tongue-twisters ("She sells seashells" β model will struggle)
β
Good Lyrics for ACE-Step:
pop ballad, clear female vocals
[Verse]
I miss you every day
Your smile won't fade away
[Chorus]
Come back to me
Come back and stay
β Difficult Lyrics:
[Verse]
The serendipitous metamorphosis of our relationship (too complex)
π Vocal Style Tags Library
soft vocals
Gentle, intimate singing
powerful vocals
Strong, belting style
breathy vocals
Airy, whisper-like tone
raspy vocals
Gritty, textured voice
clean vocals
Clear, polished sound
emotional vocals
Expressive, vulnerable
falsetto
High, head voice
soulful vocals
Rich, R&B-style singing
βοΈ Advanced Lyric Writing Techniques
These techniques help ACE-Step produce better vocal performance and pronunciation.
1. Control Syllable Count (6-10 syllables per line)
Best Practice: Keep lines at 6-10 syllables for natural rhythm. The model aligns syllables to beatsβif one line has 6 syllables and the next has 14, rhythm becomes strange.
β
Good Syllable Control:
[Verse]
Walking through the empty streets (8 syllables)
I hear your voice in my head (7 syllables)
The city sleeps but I'm awake (8 syllables)
Thinking of the words you said (7 syllables)
β Inconsistent Syllables:
[Verse]
Walk (1 syllable - too short!)
I'm contemplating all the complicated feelings that emerged (14 syllables - too long!)
2. Use UPPERCASE for Vocal Intensity
Uppercase indicates stronger vocal intensityβshouting, powerful delivery, emotional peaks.
Example:
[Verse - soft]
walking through the rain alone
[Chorus - powerful]
WE ARE THE CHAMPIONS
WE'LL NEVER SURRENDER
3. Parentheses for Background Vocals
Content in parentheses is processed as background vocals, harmonies, or call-and-response.
Example:
[Chorus]
We rise together (together)
Into the light (into the light)
Forever strong (forever strong)
4. Extend Vowels Carefully
You can extend sounds by repeating vowels, but use cautiouslyβeffects are unstable.
Example:
Feeeling so aliiive
Flyyyy away with meeee
β οΈ Warning: Extended vowels sometimes get ignored or mispronounced. Use sparingly.
5. Separate Sections with Blank Lines
Always add blank lines between structure tags for clear section separation.
β
Good Separation:
[Verse 1]
First verse lyrics here
Continue first verse
[Chorus]
Chorus lyrics here
Chorus continues
β No Separation:
[Verse 1]
First verse lyrics
[Chorus]
Chorus starts (model gets confused!)
π© Avoiding "AI-Flavored" Lyrics
These characteristics make lyrics sound mechanical and lack human touch:
| Red Flag π© |
Description |
| Adjective Stacking |
"neon skies, electric hearts, endless dreams"βfilling sections with vague imagery |
| Rhyme Chaos |
Inconsistent rhyme patterns, or forced rhymes causing semantic breaks |
| Blurred Boundaries |
Lyric content crosses structure tags, Verse flows into Chorus without clear transition |
| No Breathing Room |
Each line too long, can't sing in one breath (more than 10 syllables) |
| Mixed Metaphors |
First verse uses water imagery, second becomes fire, third is flyingβlisteners can't anchor |
π‘ Metaphor Discipline: Stick to one core metaphor per song, exploring its multiple aspects. Example: If your song is about a storm, use weather/water imagery throughoutβrain, thunder, clouds, windβnot jumping to fire, machines, or space.
π Song Structure & Section Control
Control how ACE-Step handles section transitions, instrumental breaks, and dynamics.
Section Tags:
- [Intro] - Opening instrumental or vocal section
- [Verse] - Main story/narrative sections
- [Pre-Chorus] - Build-up before chorus
- [Chorus] - Main hook/refrain
- [Bridge] - Contrasting middle section
- [Outro] - Ending section
- [Instrumental] - No vocals, just music
π Control Section Transitions
β οΈ Important: ACE-Step blends sections by default. Use these techniques for better transitions:
- "distinct transition" - Clear breaks between sections
- "smooth blend" - Gradual section changes
- "sudden drop" - Abrupt shift (EDM-style)
- "gradual build" - Increasing intensity
πΈ Force Instrumental Breaks (Critical Technique)
β Common Mistake: Writing just "[Instrumental]" often doesn't work. You need to be explicit!
β Too Vague:
[Instrumental]
β
Correct Way:
[Instrumental break, no vocals, focus on guitar melody, 8 bars]
β
Extended Instrumental Examples:
rock song, electric guitar solo
[Verse]
Lyrics here...
[Instrumental - extended guitar solo, no vocals, wah pedal, blues scale, 16 bars]
[Chorus]
More lyrics...
ποΈ Control Section Dynamics
Tell ACE-Step how each section should sound:
- "soft intro" - Quiet, gentle opening
- "gradual build" - Increasing intensity over time
- "big chorus" - Loud, powerful hook
- "quiet bridge" - Stripped-down middle section
- "explosive drop" - Sudden energy increase (EDM)
- "fade-out ending" - Gradual volume decrease
β
Full Song with Dynamic Control:
indie rock, emotional, dynamic range
[Intro - soft, acoustic guitar only, intimate]
[Verse - quiet, subtle drums enter]
Walking through empty streets
Thinking of you and me
[Pre-Chorus - gradual build, drums intensify]
Everything's about to change
[Chorus - big, full band, powerful]
We'll find our way back home!
[Bridge - quiet, stripped down to just vocals and piano]
If I could turn back time
[Chorus - explosive, loudest section]
We'll find our way back home!
[Outro - fade out, acoustic guitar returns]
π‘ Tip: Section length matters! If tags contradict structure (e.g., "short song" but 8 verses), ACE-Step may ignore structure tags.
β¨ Song Structure Example:
indie folk, acoustic, melancholic, fingerpicking guitar
[Intro - Instrumental]
[Verse]
Leaves are falling down
The summer's left this town
[Chorus]
But I'll remember every moment
Every word you said
[Verse]
Cold wind through the trees
Your memory's all I need
[Chorus]
And I'll remember every moment
Every word you said
[Bridge]
Time can't fade what we had
[Outro]
π Prompt Examples by Skill Level
Learn by example! Here are prompts organized by complexity, plus "bad vs good" comparisons.
π± Beginner Level (Simple & Effective)
Start with 3-5 core tags focusing on genre, mood, and tempo.
β¨ Beginner Example 1: Happy Pop Song
upbeat pop, happy, catchy, 120 bpm
[Chorus]
We're dancing in the sunshine
Everything's gonna be fine
β¨ Beginner Example 2: Chill Background Music
chillhop, relaxed, mellow, no vocals
β¨ Beginner Example 3: Energetic Rock
rock, energetic, electric guitar, drums, fast tempo
π― Intermediate Level (Adding Control)
Add instrumentation, production style, and negative prompts for precision.
β¨ Intermediate Example 1: Jazz Cafe Mood
jazz, intimate, slow tempo, piano and saxophone, upright bass, soft brushed drums, warm analog tone, no vocals, no electronic elements
β¨ Intermediate Example 2: Electronic Dance Track
edm, high energy, fast-paced, synth bass, punchy kick drum, vocal chops, build-up, drop, no guitars, clean modern production
β¨ Intermediate Example 3: Acoustic Singer-Songwriter
folk acoustic, melancholic, fingerpicking guitar, soft female vocals, intimate, minimal reverb, no drums, no bass
[Verse]
The leaves are falling down
Another autumn comes around
[Chorus]
Time moves on but memories stay
They never really fade away
π₯ Professional Level (Maximum Control)
Combine genre mixing, vocal control, production techniques, section dynamics, and negative prompts.
β¨ Pro Example 1: Cinematic Trailer Music
cinematic orchestral, epic, dramatic build, powerful, strings and brass, massive percussion, choir, wide stereo, dynamic range, gradual crescendo, no pop elements, no EDM
[Intro - soft, mysterious strings]
[Build - percussion enters, intensity rising]
[Climax - full orchestra, powerful choir, massive drums]
β¨ Pro Example 2: Lo-Fi Hip-Hop Beat
lo-fi hip-hop, jazzy, chill, slow tempo, warm analog tone, vinyl crackle, tape hiss, mellow piano, soft drums, subtle bass, no vocals, no harsh sounds, imperfect timing, nostalgic, study music vibe
β¨ Pro Example 3: Synthwave with Vocals
synthwave, nostalgic, 80s style, mid-tempo, analog synths, gated reverb, warm tape saturation, retro drum machine, arpeggio synth lead, male vocals with soft autotune, no modern EDM, no heavy distortion, vintage production
[Verse - minimal, synth pads and vocals]
Neon lights reflecting in your eyes
City nights under electric skies
[Chorus - full arrangement, driving drums, big reverb]
We're lost in time, forever young
The future's here, the night's begun
β Bad vs β
Good Prompt Comparisons
Learn what makes prompts effective by seeing common mistakes.
β Bad: Too Vague
make me a song
β
Good: Specific Direction
indie pop, upbeat, acoustic guitar, catchy melody, mid-tempo
β Bad: Too Many Tags (Overwhelming)
pop rock jazz electronic classical ambient metal folk country blues reggae disco funk soul r&b techno house trance dubstep
β
Good: Focused Genre Fusion
jazz hip-hop fusion, chill beats, saxophone melody, lo-fi production
β Bad: Contradicting Tags
death metal, soft and gentle, peaceful meditation music
β
Good: Coherent Style
ambient meditation, peaceful, soft pads, gentle piano, slow tempo, no percussion
β Bad: Unclear Vocals
rock song with singing
β
Good: Specific Vocal Control
rock ballad, powerful male vocals, clear melodic singing, emotional delivery, no spoken word, no rap
β Bad: Missing Important Tags
instrumental
β
Good: Complete Description
instrumental guitar, fingerstyle acoustic, folk melody, warm tone, no vocals, no drums, intimate recording
πΈ Genre-Specific Examples
πΉ Classical Piano
classical piano solo, romantic period style, expressive, dynamic range, concert hall reverb, no background instruments, no modern production
π€ R&B Ballad
r&b ballad, soulful female vocals, emotional, slow tempo, smooth production, soft drums, warm bass, subtle strings, clean mix, no autotune
[Verse]
Late nights and empty rooms
Missing you beneath the moon
[Chorus]
Can't let you go, can't move on
Every memory still feels so strong
πΈ Blues Rock
blues rock, gritty, raw, electric guitar with overdrive, raspy male vocals, harmonica solo, shuffle rhythm, vintage amp tone, no modern production, no electronic drums
π Ambient Soundscape
ambient soundscape, atmospheric, ethereal, evolving pads, slow drift, no rhythm, no drums, no melody, pure texture, deep reverb, spacious
π Trap Beat
trap beat, hard-hitting, fast tempo, 808 bass, hi-hat rolls, snare rolls, dark atmosphere, aggressive, modern production, no vocals, no melody
πΊ Big Band Jazz
big band jazz, swing, upbeat, 1940s style, brass section, saxophones, walking bass, brushed drums, vintage recording quality, no modern elements
π΅ Instrumental-Only Examples
When you want pure music without vocals.
πΈ Acoustic Guitar Solo
acoustic guitar solo, fingerstyle, melodic, folk-inspired, warm tone, clean recording, no vocals, no drums, no bass, no other instruments
πΉ Piano Study Music
piano instrumental, peaceful, gentle, repetitive patterns, minimal variation, soft dynamics, no vocals, no percussion, background music for concentration
π» String Quartet
string quartet, classical, chamber music, melodic, interweaving voices, concert hall ambience, no vocals, no percussion, no electronic instruments
π€ Vocal-Focused Examples
When vocals are the centerpiece.
π A Cappella Harmony
a cappella, 4-part harmony, vocal blend, close microphone, no instruments, no drums, no bass, no guitar, voices only
[Verse]
Harmony rising, voices blending
Four parts unite, never ending
π€ Intimate Acoustic Vocal
acoustic ballad, female singer-songwriter, breathy vocals, intimate, soft acoustic guitar accompaniment, minimal production, dry vocals, no reverb, no drums
[Verse]
Whispers in the dark
Secrets from the heart
[Chorus]
These quiet moments, just you and me
Nothing else matters when it's you I see
π΅ Gospel Choir
gospel choir, powerful, uplifting, soul, church, organ, piano, call and response, harmonies, joyful, spiritual, no rock elements, no EDM
π‘ Learning Strategy: Start with beginner examples, copy them verbatim, then gradually modify one element at a time. Once you understand how each tag affects the output, move to intermediate and pro examples. Save your favorite prompts for reuse!