> For the complete documentation index, see [llms.txt](https://memorystring.codebyz.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://memorystring.codebyz.com/build-your-movie/music.md). # Music Pictures move people; music finishes the job. Soundtrack: Inspector → **Audio** and the Timeline music lane — not the Library. ![Match Look Soundtrack, playlist, Add Music, Royalty-Free Library](/files/iKTw3fQXWh6NpuxVcCjt) ## Import your own Wedding song, paid playlist — bring it in: * Toolbar **+** → **Music…**, or **File → Import Music…** * Drop audio onto the window * **⌘V** with audio on the clipboard * Audio tab → **Add Music…** **Formats:** `.mp3`, `.m4a`, `.aac`, `.wav`, `.aiff` / `.aif`, `.flac`, `.caf`, `.ogg` / `.oga`, `.wma`, `.opus` Only import tracks you have the rights to use. ## Royalty-free library No clearance hunt — pick a mood. Toolbar **+**, **File**, or Audio → **Royalty-Free Library…**. ![Royalty Free - No Attribution Required sheet](/files/zWawR6v3ZkBEBt9uUH4c) The sheet title is **Royalty Free - No Attribution Required**. Subtitle: *Tracks from the YouTube Audio Library.* Built-in tracks need no attribution; your own imports are not owned by MemoryString. **Sort:** Catalog · Title (A–Z) · Genre (A–Z) · Duration (shortest / longest first). ![Sort the royalty-free catalog by Catalog order, Title, Genre, or Duration](/files/B5FF9wBrFWQActXWBWW1) Each row: checkbox, **title** / **artist**, **style** (e.g. Quiet ballad) or **In project** if it is already on the playlist, duration, and a play button to audition (does not move the show playhead). Check tracks, then **Add**. **Cancel** dismisses. **Add** stays disabled until at least one unused track is selected. ## Match Look Soundtrack **Match Look Soundtrack** on by default. Empty projects start quiet. After the first photos or videos land, MemoryString **soft-seeds** bundled mood track(s) — the current Look’s pool, or **Would It Matter** when no Look is selected. Mute or remove anytime. Saved projects with an empty playlist are left alone. **While the playlist is still that untouched auto bed** (empty, or only auto-seeded and auto-ordered): * Clicking a Style **Look** chip **retargets** the bed to a fitting track from that Look’s mood pool at random (Energy can lean the pool calmer or brighter) * Longer shows stitch more tracks from the pool before repeating * Dropping or importing your own audio **replaces** that bed **Auto-adding / retargeting stops** on any manual soundtrack change: royalty-free picks, reorder, trim, remove, or your own files. After that, Look clicks do **not** swap the bed; new imports **append**. The app notices when you take the wheel. Turn **Match Look Soundtrack** off to keep the playlist when changing Looks. Library picks, reorders, and your own imports stay either way. ## Audition Listen without moving the show — shop while the slideshow stays paused. * **Royalty-free sheet** — play on a row (does **not** move the show playhead). The slideshow bed stays paused while you preview * **Audio tab** — local play/pause + position on each playlist row (gold fill is already heard; does **not** move the show playhead) * **Timeline** — select a soundtrack clip on the music lane, then **scrub** the playhead (or nudge **←** / **→**). You hear that track at the playhead; the mixed bed and video buses stay silent while you scrub. Audition stops shortly after the head sits still. Clicking without dragging does not start it * **Trim grips** on a music clip audition the cut edge in the source song ## Arrange on the Timeline Line up tracks on the **music lane** (drag clips). Audio tab also has up / down arrows per row. On import, MemoryString **auto-skips silent lead-in and run-out**. Trim with edge grips or **Set Start Here** / **Set End Here** / **Reset Length** (returns to that auto window, or the full file if no quiet edges). **Mute Track** / **Unmute Track** — music-lane context menu, Audio tab (click the time readout for mute and track volume 0…100%), or the Inspector clip footer when a soundtrack is selected. **Remove from Project** — royalty-free catalog tracks remove immediately (file stays in the app). Your imports ask **Remove from project?** first. **⌘Z** either way. Audio tab: local play/pause preview (does not move the show playhead), **Reset music duration(s)** to clear trims, **Add Music…**, **Royalty-Free Library…**. ## Mix Fades and ducks so speech wins the toast. Neighbouring tracks butt with short tapers (no designed silence between songs). Waveform **narrows at the fade edges**. Ease-in \~**1.5 seconds** at the start; **final 2.5 seconds** ease out with the closing fade. Music **ducks** under video sound. Loudness \~**−14 LUFS**. Per-track volume (0…100%) and mute apply in preview and export, on top of ducking. The Audio tab’s local play/pause does not move the show playhead (gold fill is already heard). While a soundtrack decodes, the stage may show **Loading music…**. Photos stay usable; Export and soundtrack edits wait. Only import tracks you have the rights to use. MemoryString does not claim ownership of imported audio. Rights notice on the import panel and royalty-free sheet. Bundled tracks suit personal movies without attribution. ## Video sound (not the music lane) Clip audio ≠ soundtrack. On import, MemoryString listens to each **video**: **speech keeps clip audio**; **silence or noise is muted**. Same in Essential and Studio. Decline speech detection and mute still runs from **loudness only**. How it decides: [Auto detection](/build-your-movie/auto-detection.md#video-sound-auto-mute). Unmute or mute anytime: right-click **Mute Video Sound** / **Unmute Video Sound**, the Library / Timeline speaker badge, or the Inspector clip footer. No toast. See [Library](/build-your-movie/library.md#videos). --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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