Extend & Remix
Extend existing tracks naturally or create exciting remixes with AI-powered music manipulation
Overview
Transform and expand your Wubble-generated music with our extension capabilities. Our AI analyzes your track's musical structure and intelligently extends it while maintaining coherence and natural flow. Additional features like loop creation and remixing are coming soon.
Music Extension
Naturally extend short tracks while maintaining style and energy
Loop Creation
COMING SOONCreate seamless, musically-aligned loops for games and apps
Remixing
COMING SOONTransform tracks with new arrangements, tempos, and energy levels
Perfect For
Music Extension
Extend short audio clips naturally while maintaining their musical characteristics, energy, and style. Our AI analyzes your Wubble-generated track and automatically determines the ideal extension duration to maintain coherence.
Wubble-Generated Audio Only
Music extension is currently only supported for audio that was generated on Wubble. This ensures our AI has full context of the musical structure for optimal extensions.
How It Works
Wubble analyzes your source audio to understand its musical DNA, then generates new material that flows naturally from the original:
Musical Analysis
AI analyzes melody, harmony, rhythm, instrumentation, energy levels, and musical structure
Pattern Recognition
Identifies recurring patterns, chord progressions, and stylistic elements that define the track
Natural Generation
Creates new musical material that continues the original naturally, with smooth transitions and consistent energy
Seamless Blending
Ensures smooth transitions between original and extended sections without audible seams
Intelligent Duration Selection
Rather than specifying an exact duration, our AI analyzes your track and automatically determines the ideal length for the extension. This ensures:
- Musical coherence is maintained throughout the extension
- The track doesn't feel artificially stretched or become repetitive
- Natural transitions and progression that fit the musical style
- Proper pacing and energy flow from start to finish
Using the API
Music extension is available through our conversational Chat API. Simply ask to extend your track within an existing project.
curl --request POST \
--url https://prod-backup-backend.wubble.ai/api/v1/chat \
--header 'Authorization: Bearer YOUR_API_KEY' \
--header 'content-type: application/json' \
--data '{
"project_id": "your-project-id",
"prompt": "Extend this track"
}'API Details
- Endpoint: POST https://prod-backup-backend.wubble.ai/api/v1/chat
- Cost: 100 credits per request
- Provide a project_id to extend audio within an existing project
- The AI automatically determines the optimal extension duration
Loop Creation
COMING SOONCreate perfectly seamless loops that repeat without audible seams or jarring transitions. Essential for game soundtracks, app backgrounds, and continuous ambient music.
Coming Soon
Loop creation functionality is currently in development. Stay tuned for updates on this feature.
Intelligent Loop Points
Wubble automatically identifies the best loop points in your audio:
- Musical alignment: Ensures loops occur at musically meaningful points (end of bars, phrases)
- Harmonic matching: Finds points where harmony naturally cycles back to the beginning
- Energy consistency: Maintains consistent energy levels at loop points
- Smooth crossfades: Applies intelligent crossfading to eliminate clicks and pops
Loop Types
Simple Loops
Clean repeating sections, perfect for background ambience
Evolving Loops
Subtle variations on each repeat to prevent monotony
Layered Loops
Multiple loop lengths that phase in interesting ways
Interactive Loops
Designed for dynamic game audio with transition points
Perfect for Game Audio
When available, you'll be able to create music loops that can play indefinitely without becoming repetitive or annoying. Essential for level music, menu screens, and ambient soundscapes.
Remixing
COMING SOONTransform existing tracks into exciting new versions. Change tempo, add energy, introduce new instruments, or completely reimagine the arrangement while maintaining the core musical identity.
Coming Soon
Remixing functionality is currently in development. Stay tuned for updates on this feature.
What You Can Change
Tempo & Timing
Speed up or slow down tracks. Add swing or change from straight to syncopated rhythms. Perfect for adapting music to different contexts.
Energy Level
Increase or decrease intensity. Add or remove tension. Transform calm tracks into high-energy versions or vice versa.
Instrumentation
Add new instruments or remove existing ones. Swap acoustic for electronic, or orchestral for synth-based sounds.
Structure
Rearrange sections, add buildups and drops, insert breakdowns, or create radio edits with modified structures.
Production Style
Apply modern production techniques: sidechain compression, heavy reverb, lo-fi effects, aggressive EQ, or pristine clarity.
Creative Elements
Add risers, impacts, breaks, vocal chops, scratch effects, or other modern production elements.
Creative Applications
🎬 Video Content Creation
Extend short music clips to match your video length perfectly. No more awkward fades or abrupt endings.
Example: Extend a 45-second intro track to 2 minutes for a full video introduction
🎮 Game Development
Create seamless loops for different game states, levels, and scenarios from a single composition.
Example: Create exploration, combat, and victory versions from your main theme
📱 Social Media Marketing
Create platform-specific versions: energetic remixes for TikTok, calmer extensions for YouTube, loops for Instagram Stories.
Example: Remix your brand track into 15, 30, and 60-second high-energy versions
🎙️ Podcast Production
Extend intro/outro music to match varying episode lengths. Create seamless background music for entire segments.
Example: Extend your 20-second intro music to 60 seconds for a longer opening segment
🏢 Corporate Events
Create walkup music, hold music, and background loops of varying lengths for presentations and events.
Example: Extend brand audio from 30 seconds to 5 minutes for conference entrance music
Best Practices
Use Wubble-Generated Audio
Music extension currently works only with audio generated on Wubble. This ensures the AI has full context of the musical structure for optimal extensions.
Trust the AI's Duration Choice
The AI automatically determines the optimal extension duration based on musical analysis. This ensures the extended track maintains coherence and doesn't feel stretched or repetitive.
Use Clear Prompts
When requesting an extension via the Chat API, be clear and concise. Simple prompts like "Extend this track" work well.
Consider Your Use Case
Think about where the extended track will be used. Extensions work great for video content, presentations, and any scenario where you need longer background music.
Provide Context in Projects
Use the same project_id when extending tracks to maintain conversation context. This helps the AI understand what you've already created.