Music Mode — Theo Symphony
Create real songs with vocals — or instrumentals — straight from chat. Describe a vibe, write (or let Theo write) the lyrics, and Theo Symphony composes two versions of your song, each with its own AI cover art and a karaoke lyric player.
How It Works
1. Open Music mode. Click Create music in the chat sidebar, choose Musicfrom the composer's mode menu, or just ask for a song from any chat. Music mode opens with a gallery of song styles — tap one (or Surprise me) to drop a starting idea into the composer, then tweak it. A Your songs link there opens your library anytime.
2. Set the vibe + lyrics. Tell Theo the style (genre, mood, instruments, tempo, vocal feel). Paste your own lyrics, ask Theo to write them, or set it to an instrumental for a vocal-free track.
3. Get the two best takes. Theo Symphony composes several takes of your song in parallel, listens to each one, and surfaces the two strongest — each with cover art and a synced lyric player. Pick your favorite, download it, or ask for another. The Premium tier renders the widest spread of takes for the highest-quality pick; Fast keeps it quick for drafts.
Lyrics, Your Way
Bring your own
Paste lyrics with section tags like [Verse] and [Chorus] — Theo sings them exactly as written.
Let Theo write
Give a theme ("a road-trip anthem about new beginnings") and Theo writes original, structured lyrics for you.
Instrumental
Ask for an instrumental, beat, or backing track — no vocals, no lyrics needed.
Real Song Structure & Chords
When Theo writes the lyrics, it builds them on a genre-specific songwriting blueprint — so a pop song, a rap track, an R&B slow jam, an EDM anthem, and a country ballad each get the structure real artists use, not one generic template.
- A real arrangement — verses, pre-choruses, a bridge, an intro and outro, arranged the way the genre expects (rap gets 16-bar verses and a hook; pop gets a pre-chorus lift; EDM builds into a drop).
- A hook that actually repeats — the chorus (or hook) is written once and comes back word-for-word every time, so your song has a part you remember instead of drifting into new lyrics the whole way through.
- Genre-matched chords — each section is grounded in a chord progression that fits the style, and that harmony steers the music Theo composes.
You can see the exact structure and chord progression Theo used in the song description panel in the Song Studio — expand it to view the section arrangement and the per-section chords.
Advanced Mode
Tap Advanced on the Music screen to open a focused song builder. Set the title, dial in the styles (genre, mood, instruments, tempo, vocal feel), and choose how you want the lyrics:
- Write my own — type or paste lyrics with section tags like [Verse] and [Chorus].
- Theo writes — give a theme and Theo drafts structured lyrics you can edit before you compose.
- Instrumental — skip lyrics entirely for a vocal-free track.
Pick a quality tier, hit Create song, and Theo Symphony composes your two versions just like a chat request — the song lands right in the conversation with its cover art and karaoke player.
Start From Your Own Audio
In Advanced mode, the Your audio section lets you record yourself right in the browser — sing, hum, or play an instrument — or upload an audio file (WAV, MP3, M4A, FLAC, or OGG; 6 seconds to 6 minutes). Then choose how Theo Symphony uses it:
- Cover it — your melody, words, and structure stay; Theo Symphony produces the full track around them in the style you describe. Perfect for turning a voice memo into a finished song.
- Inspiration— Theo Symphony writes a new song that borrows your recording's vibe, energy, and feel.
If a recording can't be used for any reason, Theo Symphony automatically composes from your written brief instead — your song always arrives.
Choose Your Vibe
Music mode comes alive with full-screen animated backgrounds. Tap the small metal control on the right edge to switch between scenes — a bustling crowd, dithered wave / swirl / dots / warp shaders, a flowing fuchsia nebula, or a neon terrain. Each swatch is a live preview of the real scene.
Leave it on Auto (the default) and Theo gently shuffles to a fresh scene every so often, so it feels new each time you come back. Your pick is remembered for next time, and everything calms to a still backdrop if you prefer reduced motion.
The greeting and controls automatically adapt their contrast to whichever scene is showing — light text over the darker shaders, the standard look over the brighter crowd — so everything stays crisp and readable.
The Karaoke Player
Tap a version to open a full 9:16 player. The cover art fills the frame, an animated waveform reacts to the music, and the lyrics stream by karaoke-style — the current line lights up and scrolls into view so you can follow along. Instrumentals show the cover + waveform without lyrics.
Go immersive.Tap the expand button on the player to slide into a full-screen take-over: the cover art becomes a glowing, drifting backdrop, soft light blooms pulse in time with the music, and the lyrics run large and centered — word-by-word when the timing is available. It's built for both phone and desktop, picks up exactly where playback left off, and calms to a still backdrop if you prefer reduced motion. Tap anywhere to show or hide the controls; press Escape or the close button to come back.
The Song Studio
The moment your first song starts, Music mode opens into the Song Studio — a focused space built just for music. Your two trackssit pinned at the top with their cover art; while they render you'll see an elegant composing animation, and the moment they're ready you can press play right there.
Below the tracks, a collapsible song description shows the title, style, and version at a glance — tap it to expand the full lyrics, the song's section structure, and its chord progression.
Edit and it evolves. Just ask for a change — "make the chorus more upbeat", "switch to acoustic", "add a bridge" — and Theo composes a new version with exactly that change, keeping everything else. Each version stacks in the version timelinedown the side, so it feels like you're building one song up over time. Tap any version to bring it back to the top and play it.
Organize Your Songs
Every song you make is saved automaticallyto your Theo Symphony library the moment it finishes — and it's auto-sorted by genre, so your library organizes itself with no setup. Tap Your songs on any song card (or in the Song Studio) to jump straight there — it opens to the exact song you just made.
Want tighter control? Group songs into workspaces (playlists) — one per project, mood, or album — pin a whole genre shelf as a workspace in one tap, move songs between them, and replay any track in the karaoke player anytime.
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