Paper Lanterns
Ambient · Calm
Music library
Stream full original CC0 instrumentals and download editable loops.
Original tracks · CC0
A little music for what you’re making.
Original instrumentals for prototypes, videos and games. Stream a track, download the MP3, or open its base loop and make it your own.
Now selected · Ambient
Paper Lanterns
Soft keys, a slow bass line and brushed percussion.
0:00 / 2:27
6 tracks
78 BPM2:27CC0Download
Night Train
Downtempo · Focused
Small Victories
Electronic · Bright
Glass Garden
Ambient · Calm
After Hours
Downtempo · Focused
Open Window
Electronic · Bright
Clear permission to use the built-in tracks.
The six built-in compositions and synthesized recordings are dedicated to the public domain under CC0 1.0. You can use, edit and redistribute them, including in commercial projects. Attribution is optional. No third-party recordings, vocals or artist likenesses are used.
The full arrangements have original intro, verse, chorus, bridge and outro sections. The composer opens the editable base loop. Custom arrangements use the notes you supply; importing a recipe does not clear rights to someone else’s melody.
Download license note →Track metadata and streaming API →About Music library
Stream and download six original instrumental arrangements in ambient, downtempo and electronic styles. Each built-in recording is offered under CC0, with no third-party samples.
When to use it
Find a reusable instrumental for a prototype, video or game without bringing in a third-party recording.
Filter Calm → play Paper Lanterns → download the MP3 or customize its base loop.How to use it
- Filter the library by mood or search for a track.
- Play, seek, repeat or move between tracks.
- Download the full MP3, its WAV loop or open the base loop in the composer to make your own arrangement.
Choose a track for the job
The collection contains six full instrumental arrangements across ambient, downtempo and electronic styles. Search by title or sound, or filter by mood. Track rows show tempo and duration so you can choose a rhythm that fits an animation, a product demo or a prototype. Each full MP3 lasts about one-and-a-half to three minutes, with intro, verse, chorus, bridge and outro sections. The recordings are synthesized locally from original compositions.
Press Play to start listening. You can seek, adjust volume, repeat a track or enable automatic playback of the next track. No sound begins when the page first loads. The player fetches the selected track directly from this deployment, and downloads do not depend on a third-party music account.
Download a recording or edit its arrangement
Download MP3 saves the full arrangement. Download WAV loop saves its uncompressed stereo base loop for editing. Customize its loop opens that base pattern in the audio composer. There you can change the notes, percussion, instrument, tempo and mix, then export a new version and its JSON recipe.
The original tracks have deterministic recipes, so the same version of the renderer produces the same recording from the same settings. Keep the recipe if reproducibility matters to your test or project. Full arrangements use several sections and mix variations. The browser composer edits a shorter base loop, rather than providing a full multisection song editor.
Use the streaming API
GET /api/music returns track names, moods, tempos, durations, licensing information and audio URLs. Each audio endpoint accepts a single HTTP byte range, supporting progressive playback and seeking. ETag, If-None-Match and If-Range are supported for caching. A malformed or unsatisfiable range returns 416 instead of silently producing a different section.
Full MP3 arrangements are included with the deployment; WAV loops are rendered on first use. Subsequent requests can use a bounded in-memory cache. Direct streaming and download URLs do not consume hosted renders. Requests to run_tool, including full MP3 artifacts and custom compositions, use the normal successful-run allowance.
License scope
The six built-in compositions and synthesized recordings are dedicated under CC0 1.0. Attribution is optional, including for commercial projects. The collection contains no third-party recordings or vocals. The CC0 link below provides the complete terms.
This dedication applies to the named built-in tracks. It does not change the license of an uploaded file or clear someone else’s melody imported into the composer. A track’s source and license metadata should travel with an asset when you pass it to another team.
Limits & privacy
Full MP3 arrangements are approximately 1½–3 minutes; editable WAV loops are 16–29 seconds. These are original procedurally synthesized instrumentals, not a catalog of commercial recordings or a connection to Spotify or another streaming service. CC0 applies to the built-in compositions and generated recordings. Attribution is optional. Tracks are available directly from this deployment, with byte-range playback and downloads. Audio never starts before you press Play.
Use this tool from the API reference or connect through the SDK, CLI, SSH, or MCP. Hosted calls share your plan allowances.