01 / AUDIO
Cortisol
Atmospheric Electronic  ·  Melodic Techno  ·  Ambient

A procedurally generated atmospheric music engine. Slow-building pads, hypnotic kick patterns, and evolving melodic phrases that rise, sustain, and release — named after the neurochemical response that emotionally charged music actually triggers. Every seed produces a unique piece. String multiple plays together for longer sessions.

Copyright-free No attribution Up to 20 min Unique every play Seed-shareable YouTube safe
Style: Melodic techno · Deep atmospheric · Bicep-adjacent
BPM range: 118–140  ·  Key: Procedurally chosen
Length: Up to 20 minutes per session
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02 / AUDIO
Clean Hip Hop
Instrumental Hip Hop  ·  Boom Bap  ·  Jazz Hop

Procedurally generated instrumental hip hop — clean production, no vintage crackle, no vocal samples. Punchy snare on 2 and 4, warm Rhodes pads, fingered bass, and a groove that settles in without demanding your attention. Six groove archetypes to choose from. Ideal for focus sessions, video backgrounds, or anything that needs rhythm without distraction.

Copyright-free No attribution Up to 20 min Unique every play 6 groove styles YouTube safe
Style: Clean instrumental hip hop · Boom bap without the grit
BPM range: 82–98  ·  Key: Major · Dorian · Minor
Grooves: Punchline · Headnod · Stripped · Prowl · Bounce · Nod
Length: Up to 20 minutes per session
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03 / AUDIO
BGM
Background Music  ·  Procedural Generation  ·  Multi-style

A full-featured algorithmic background music engine with the widest style range of the three. Twelve named groove styles — from Corporate walking bass to Latin tumbao, Pedal drone to Boogie — plus a wide BPM range covering everything from slow ambient to driving upbeat. Lockable dials, MIDI export, and continuous autoplay. Set it and forget it.

Copyright-free No attribution Up to 20 min Unique every play MIDI export YouTube safe
Style: Multi-genre · Corporate · Chill · Upbeat · Latin · and more
BPM range: 55–155  ·  Grooves: Corporate · Chill · Upbeat · Minimal · Groove · Latin · Pedal · Walk · Dreamy · Punchy · Hypnotic · Bounce
Length: Up to 20 minutes per session
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// What people use these for

YouTube videos Background music that won't trigger Content ID. Play and record — no licensing paperwork.
Focus & study Non-intrusive rhythmic or atmospheric textures that keep you in flow without pulling your attention.
Live streams Copyright-safe audio for streaming without mute risk. No attribution needed in the stream.
Creative backgrounds Writing, drawing, coding — music that fills a room without hijacking it.