lacuna.fm · Changelog
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Changelog

A running log of what's changing inside lacuna.fm— new tools, improvements, and small details we couldn't resist polishing.

Smoother music workspace — live updates, multi-take previews, accurate history

A round of fixes to the music generation workspace — generation progress reaches the UI as soon as it happens, every take from a multi-take generation is playable while the rest finishes, and version history now highlights the snapshot you actually restored.

  • Generation status updates arrive reliably the moment a track finishes
  • All streaming previews from a multi-take generation are playable, not just the first one
  • Version history highlights the snapshot you actually restored
  • Restoring a lyrics version no longer leaves a duplicate entry in history
  • Several dialogs no longer overflow on mobile screens
  • Three Lacuna GPTs are now linked from the footer — Lyrics Generator, Music Generator, and Song Creator

Generation updates feel live again

Progress and "ready to play" state now reach the workspace immediately when a generation finishes, even after the server restarts. If you noticed the canvas occasionally getting stuck on "rendering" when the audio was already ready, that is fixed.

Hear every take while the rest is still rendering

When a generation produces multiple takes, all of them now appear as live preview buttons on the loading card the moment they are ready — not just the first one. Pick whichever take you like and start listening while the others continue rendering.

Version history points at the right snapshot

Music DNA and lyrics history now highlight the snapshot you actually restored, and update correctly after you create a new one. Restoring a lyrics version also no longer creates a duplicate entry in history.

Three Lacuna GPTs on ChatGPT

Prefer to work inside ChatGPT? Three custom Lacuna GPTs are now linked from the site footer:

Smaller things

  • Share, pricing, recipe, and a couple of showcase dialogs no longer overflow off-screen on phones.
  • Chat replies in the music workspace no longer occasionally show raw JSON for suggestion chips or DNA fields inline.

Stem separation, with a live mixer

A new tool that splits any song into its parts — vocals, drums, bass, and more — plus a real-time mixer to play with the result. The global audio player has been reworked, and ChatGPT GPT sessions can now be forked into Lacuna.

  • Split any song into vocals, drums, bass, and other stems
  • A live mixer to mute, solo, and rebalance the parts as they play
  • A library of showcase songs to try before you upload
  • Global audio player reworked, with a new full-screen view and smoother cross-page playback
  • Fork ChatGPT GPT sessions for music and lyrics into a Lacuna workspace

Stem separation

A new tool that splits any track into its core parts — vocals, drums, bass, and other instruments. Upload a song, or pick one from your library, and Lacuna gives each stem back as its own audio file.

Try it →

A live mixer

Splitting is just the start. The stems page comes with a built-in mixer — mute, solo, or rebalance each part while the song plays. The fastest way to hear what a track sounds like without vocals, with drums solo'd, or with everything but the bass dropped out.

We've also seeded a showcase library across genres so you can try the whole flow without uploading anything of your own first.

A reworked global audio player

The player at the bottom of the app has been rebuilt:

  • Persistent across pages — keep listening while you browse to a different hub
  • A new full-screen view with bigger artwork and cleaner controls
  • Track-type badges so you can tell at a glance whether you're playing a generation, a stem, or an upload

Fork from ChatGPT

If you use the Lacuna GPT inside ChatGPT to draft lyrics or songs, you can now fork that session straight into a Lacuna workspace — lyrics, prompt, and context preserved — and continue refining from there.

Smaller things

  • All hub cards now show relative times ("3 minutes ago") instead of static timestamps
  • Polished the showcases, segmented controls, and scroll fades across the app
  • Tightened the music workspace layout and global player bar

MIDI to sheet music, plus a faster assets library

A new MIDI to sheet music converter, full-screen previews for sheets and covers in the assets library, and the ability to star your favorite generations.

  • Turn any MIDI file into clean printable sheet music
  • Preview sheets and album covers in full screen without leaving the library
  • Star your favorite generated covers for quick access

MIDI to sheet music

Upload a MIDI file and get a clean, printable score back — not just notes on a grid, but real engraved sheet music. Keep a history of conversions, preview the output inline, and export as PDF or image when you're ready.

Try it →

A better assets library

Your assets library now has full-screen preview dialogs for sheet music and album covers, so you can inspect anything without downloading first. Cover generations can be starred for quick recall later, and the grid has been tightened up for easier browsing.

Open library →

Smaller things

  • Polished the top navigation, mobile menu, and music sidebar
  • Refined the album cover generator hub

Album covers, lyric inspiration, and a redesigned hero

A new album cover generator, an AI lyric muse to break writer's block, a redesigned music creation hero with vocal modes and inline lyrics, plus live task status in your browser tab.

  • Generate album covers from a prompt, lyrics, or your mood
  • Lyric muse — turn fragments into verses without leaving the page
  • Redesigned music hero with vocals/instrumental toggle and model picker
  • Live task status now shows on your browser tab favicon
  • A friendlier 404 with a hidden surprise

Album cover generator

A new tool dedicated to artwork. Describe the vibe, drop in lyrics, or pick a style — Lacuna composes a cover that matches the song you're writing. Try it →

Lyric muse

Stuck on a verse? The new lyric muse turns half-formed lines into something you can sing. It lives right inside the music creation flow — no extra page, no friction.

A redesigned music hero

The home and music pages now share a single, focused entry point:

  • Inline lyrics expansion — paste or write lyrics without leaving the box
  • Vocals vs. Instrumental — explicit toggle, no guessing
  • Model picker — pick your preferred model up front
  • Attachment menu — image, audio, and reference files in one place

Task status on your tab

Running a long generation in the background? Your browser tab favicon now turns blue while a task is running, green when it succeeds, red on failure. Switch tabs freely — Lacuna will quietly tell you when something's ready.

Smaller things

  • A new Tools page collecting everything Lacuna can do
  • Mobile menu redesigned with smoother transitions
  • A redesigned 404 page — try playing with it
  • Contextual nudges to help you discover features as you explore