Instrument Synthesis & Acoustic Quality Engine

Each part is generated on its own, shaped to these standards, then layered and mixed. Nothing is blended into a single synthetic sound.

General rules — always on

✅ Generate each instrument individually first, then layer and mix them afterwards.
✅ Never blend the parts into one synthetic sound — each instrument keeps its own body and space.
✅ Default is INSTRUMENTAL ONLY. Voice, singing and lyrics stay OFF unless the request asks for them.
✅ Follow the exact request every time: nothing extra, nothing omitted.

🎹 Piano — concert grand

• Concert grand piano tone
• Warm wood resonance from the soundboard
• Felt-hammer texture, not a hard click
• Notes ring together and fade naturally

NEVER thin, bright, tinny, electronic-sounding

Body resonance: +3.5 dB at 220 Hz
Brightness limit: 6800 Hz
Glare removed: -6 dB above 7 kHz
Notes ring for: 0.9s

🎵 Harp — concert pedal harp

• Concert pedal harp tone
• Fingertip-plucked warmth
• Golden resonance with gentle string texture
• Notes linger softly and fade together

NEVER harsh, bright, synthesized-sounding

Body resonance: +3 dB at 260 Hz
Brightness limit: 6200 Hz
Glare removed: -7 dB above 7 kHz
Notes ring for: 1.1s

🎸 Acoustic guitar

• Real spruce-and-rosewood body
• Fingertip warmth
• Strings ring on after the pluck

NEVER thin, brittle, plastic-sounding

Body resonance: +2.5 dB at 190 Hz
Brightness limit: 6500 Hz
Glare removed: -5 dB above 7 kHz
Notes ring for: 0.7s

🎻 Cello

• Deep wood chest resonance
• Bow hair audible, never scratchy
• Long warm sustain

NEVER thin, nasal, synthetic

Body resonance: +3 dB at 160 Hz
Brightness limit: 6000 Hz
Glare removed: -6 dB above 7 kHz
Notes ring for: 0.5s

🪈 Flute

• Real breath in the tone
• Soft round top
• Gentle natural release

NEVER whistly, piercing, digital

Body resonance: +2 dB at 420 Hz
Brightness limit: 7200 Hz
Glare removed: -4 dB above 7 kHz
Notes ring for: 0.3s

Lucas.

Lucas AIOpen chat