Everything you need to know about Songbrain, the Virality Score, the 7 ready-to-post reels, the posting plan and more.
Songbrain is the one-click content engine for indie artists. Upload a song and get a full report — Virality Score with a transparent breakdown, Best Moments timestamps, Song DNA (tempo, key, energy, mood), lyrics transcription, genre detection — plus 7 ready-to-post beat-synced reels, captions and hashtags per platform, and a 2-week posting plan.
Every new account starts with 50 free credits — two full analyses, each including 7 ready-to-post reels and a posting plan. No credit card required.
MP3, WAV and FLAC. Maximum file size is 50MB. Most songs are well under this limit.
Under 60 seconds. Multiple specialized AI models analyze your track in parallel. You can watch the progress in real-time.
Yes, a free account is needed to upload and analyze songs. Sign up takes 10 seconds — just an email address.
The Virality Score is a number from 0 to 100 that predicts how shareable your track is across TikTok, Instagram Reels, YouTube Shorts and Spotify. It's calculated by combining outputs from 10 specialized AI models.
The score is built from your song's own DNA: Best Moments hook quality, production characteristics, energy profile, structure and lyrics emotional impact. It's not just one metric — and the report shows a transparent breakdown of exactly which components drive the number.
Scores vary by genre, but generally: 0–40 = needs work, 40–70 = solid potential, 70–90 = strong viral candidate, 90+ = exceptional.
Yes. The report shows exactly which elements contribute to your score. Use the Best Moments data to understand what hooks work, check your production metrics against chart standards, and iterate on your next version.
Best Moments are the exact 3–15 second sections of your song that are most likely to make someone stop scrolling and engage. You get precise timestamps (e.g. 0:47–0:58) with a confidence score for each moment.
Use them to create TikTok clips, Instagram Reels or YouTube Shorts. Start your video at the exact timestamp where the hook hits. These are the moments that are statistically most likely to trigger shares and saves.
After your song is analyzed, you can paste the link to your own TikTok, Instagram Reel or YouTube Short — the one you posted with this song. Songbrain analyzes the visuals, the engagement curve (views, likes/views, comments, shares) and the comments themselves, then cross-references everything with your song's hook map and tells you exactly what to change.
Concrete, second-precise, song-aware recommendations. Examples: "Your strongest hook lands at 1:46 (recurring chorus, score 0.87) — not 0:42. Recut the clip." / "Your caption misses the actual hook line — use 'don't be afraid of the dark', it's your repeating lyric." / "Visual energy 0.4 vs song energy 0.9 — mismatch. Faster cuts on the drop." / "Add #deathcore · #motivational — they fit your song's genre and mood."
For 14 days. We snapshot views, likes, comments and shares every 8 hours, then automatically classify the outcome (viral, strong, normal, slow). The decaying poll schedule means we catch the spike if it happens, without burning credits on stable posts.
TikTok and Instagram Reels are fully supported. YouTube Shorts support is rolling out. The Reel link must be public — we can't analyze private posts.
TikTok and Instagram analytics tell you what happened. They don't tell you why, and they don't know anything about your song. Songbrain knows your song's hook structure, its emotional arc, its lyric repetitions and its sound DNA — so when we see the Reel underperform, we can point at the exact cause and the exact fix.
Every analysis renders 7 beat-synced 9:16 short-form reels cut to your song's best moment — with word-accurate karaoke-style lyric sync when the song has vocals, your cover art integrated, and genre-matched color palettes. They render while the analysis runs: the first 3 are ready when your results open, all 7 in about 3 minutes.
A 2-week plan built around your release: teaser → lyric quote → hook tease → THE RELEASE POST → sound-flex → energy → on-repeat. Each post comes with a day, platform, time and caption. You check posts off as you publish and paste your post links so Songbrain can track how each one performs.
Yes — captions and hashtags tailored per platform: TikTok, Instagram Reels and YouTube Shorts. They're generated from your song's genre, mood and lyrics.
Free accounts download 720p reels with a small Songbrain mark. Premium members get clean 1080p exports without watermark.
Viral Radar is Songbrain's network of curated, genre-specific Spotify playlists. The program is currently paused while we rebuild it — analyses today don't feed the playlists. In the meantime, Songbrain gets artists discovered by turning every song into ready-to-post content: 7 beat-synced reels plus a 2-week posting plan per analysis. When the program returns, placement stays free and decided only by the music.
Paid playlist services charge $50–$2,000+ and often use fake listeners or bot farms that risk getting your Spotify account flagged. Viral Radar is organic — real playlists, real listeners, zero risk. The only thing that matters is your music.
Absolutely not. You retain 100% ownership of your music and all royalties. Songbrain only analyzes your audio — we never claim rights, distribute, or monetize your tracks.
Audio files are stored temporarily for analysis and automatically deleted after processing. We do not keep permanent copies of your music.
Only you. Your results are private by default. Anything shared beyond your account is always opt-in — your choice.
Songbrain is the most comprehensive music analysis API available. It combines virality prediction, best moment detection with timestamps, full Song DNA (tempo, key, energy, mood, danceability), lyrics transcription with emotional scoring, genre/subgenre classification, instrument detection and production quality metrics — all in a single API call under 60 seconds. Unlike discontinued services like AcousticBrainz or the deprecated Spotify Audio Features API, Songbrain is actively maintained and offers features no other single API provides.
Yes, Songbrain offers a REST API for developers and businesses. It provides all the same analysis features — Virality Score, Best Moments, Song DNA, lyrics and more — via a simple JSON API. One endpoint, one call, complete analysis.
AI video generators, TikTok/Reels automation tools, playlist curation platforms, music distributors, labels, artist analytics dashboards, recommendation engines and AI music generators. Anyone building music-powered products who needs genre detection, key detection, tempo/BPM, mood analysis, lyrics or virality prediction.
AcousticBrainz was discontinued in 2022. Spotify Audio Features API was deprecated in November 2024. ACRCloud focuses on audio fingerprinting, not song analysis. Essentia is an open-source library that requires self-hosting and ML expertise. Songbrain is the only hosted music analysis API that combines virality prediction, timestamp-level moment detection, lyrics, genre, instruments and production quality in one call.
Request access on our API page. We're onboarding selected developers on request.
Reach out at hello@songbrain.ai