Research / Self-editing agents

Music Agent Experiment

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Experiment #1

A 90-second lo-fi hip-hop study beat. Melancholy mood. 75 BPM. Jazzy chords on a Rhodes electric piano. Vinyl crackle. No vocals.

Started Invalid Date
#2·edit·May 7, 2026, 05:03 AM·emotional-mapping.md(revision)Voting open

Adding concrete musical details for the melancholy mood (specific chord types, instrument timbres, texture processing) will give the prompt writer clearer guidance, resulting in a richer, more fitting lo‑fi beat that captures the intended study‑friendly melancholy vibe.

Generated audio
Generation prompt· what was sent to the music model
Create a 90‑second instrumental lo‑fi hip‑hop track at 75 BPM with a melancholy mood. Use a minor key and play extended minor‑7th and minor‑9th chords on a warm Rhodes electric piano. Structure the piece with an 8‑bar intro of subtle vinyl crackle and low‑pass‑filtered ambience, then introduce the Rhodes chord loop, a muted sub‑bass following the root notes, and a soft, brushed drum kit (filtered kick, gentle snare, light hi‑hat pattern) that emphasizes space and sparse rhythm. Keep the drum pattern simple and allow occasional tiny variations in the chord voicings and filter sweeps during the main 64‑bar loop. Apply gentle tape‑saturation, a thin reverb on the piano, and maintain a warm, balanced mix with no harsh high‑end. End with a short outro that fades the piano and leaves only the faint vinyl crackle. No vocals or sampled melodies.
File diff· emotional-mapping.md (revision)
before
# Emotional Mapping

Translations from feelings to musical choices.

- Melancholy: minor key, slow, sparse
- Happy: major key, faster, full
after
# Emotional Mapping

Translations from feelings to musical choices.

- Melancholy: minor key, slow tempo (≈70‑80 BPM), sparse arrangement, use extended minor 7th/9th chords on warm electric piano (e.g., Rhodes), low‑pass filtered textures, subtle vinyl crackle, gentle reverb, soft sub‑bass.
- Happy: major key, faster, full
1 voteA: 1 · B: 0Open comparison →
#1·noise·May 7, 2026, 05:01 AMVoting open

noise floor measurement

Generated audio
Generation prompt· what was sent to the music model
Create a 90‑second instrumental lo‑fi hip‑hop beat at 75 BPM with a melancholy atmosphere. Use a minor key and a sparse arrangement. Feature a Rhodes electric piano playing jazzy extended chords, warm and low‑pass filtered, with subtle voicing changes. Lay a soft, laid‑back drum pattern: muted kick, brushed snare, lightly swung hi‑hat with occasional gentle open‑hat accents. Add a rounded sub‑bass line that follows the root of the chords. Throughout the track, embed a consistent vinyl crackle texture and faint tape hiss, processed with gentle analog saturation and mild reverb to create a cozy, study‑friendly vibe.  

Structure the piece with an 8‑measure intro of crackle and chords, then introduce drums and bass, maintain a looping groove for the main section, include a brief 4‑measure breakdown where drums drop out leaving only chords and crackle, then return to the full groove, and end with an 8‑measure fade‑out of chords and crackle. Keep the mix low‑key, avoid harsh frequencies, and ensure no vocal elements.
#0·baseline·May 7, 2026, 05:01 AMVoting open

Baseline track — no edit, just the starting cookbook.

Generated audio
Generation prompt· what was sent to the music model
Create a 90‑second instrumental lo‑fi hip‑hop beat at 75 BPM with a melancholy atmosphere. Use a minor key and a sparse arrangement. Feature a Rhodes electric piano playing jazzy extended chords, warm and low‑pass filtered, with subtle voicing changes. Lay a soft, laid‑back drum pattern: muted kick, brushed snare, lightly swung hi‑hat with occasional gentle open‑hat accents. Add a rounded sub‑bass line that follows the root of the chords. Throughout the track, embed a consistent vinyl crackle texture and faint tape hiss, processed with gentle analog saturation and mild reverb to create a cozy, study‑friendly vibe.  

Structure the piece with an 8‑measure intro of crackle and chords, then introduce drums and bass, maintain a looping groove for the main section, include a brief 4‑measure breakdown where drums drop out leaving only chords and crackle, then return to the full groove, and end with an 8‑measure fade‑out of chords and crackle. Keep the mix low‑key, avoid harsh frequencies, and ensure no vocal elements.
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