AI-generated vocal melodies for producers, songwriters, and beatmakers. Yaourt vocals in the right key, no licensing headaches.
3 free toplines. No credit card required.
Drop your instrumental. MP3, WAV, M4A, or FLAC. We auto-detect BPM and key.
Choose from 7 curated presets. Pop hooks, R&B melodies, indie textures, and more.
In ~30 seconds, receive a vocal melody perfectly matched to your track. Download and produce.
Stop waiting on vocalists. Get a melodic direction in seconds, not days.
Skip hours of session booking. Get a vocal direction instantly.
Auto-analysis ensures your topline locks into the track naturally.
Every topline is yours. Use it in demos, pitches, or final releases.
Pop, R&B, Drill, Afro, Indie, Latin, Dancehall. Curated for mainstream vibes.
Melodic placeholders, not final lyrics. Perfect for sketching song ideas.
Not feeling it? Generate another. Your credits, your pace.
Try 3 toplines free. Then pick what works for you.
25 toplines / month
100 toplines / month
200 toplines / month
A topline is the vocal melody and rhythm that sits on top of an instrumental. Vocastra generates yaourt (placeholder) vocals: melodic lines you can use as a writing guide or demo.
MP3, WAV, M4A, and FLAC up to 50 MB. Best results with instrumentals between 1-5 minutes.
Yes. All generated toplines are yours to use in demos, pitches, or final releases without additional licensing.
Typically 20-40 seconds depending on track length and server load.
Your credit is automatically refunded. You can try again with the same or a different file.