
Sonoteller
Sonoteller is an AI music analysis engine that listens to a song and creates a comprehensive profile of its lyrics and music. It identifies genres, subgenres, moods, instruments, vocals, BPM, key, language, explicit content, and the golden minute, in about a minute per song. A free demo works with YouTube links, and API endpoints allow labels and publishers to auto-tag catalogs at scale. Sonoteller is now part of Chordal.
What is Sonoteller?
Sonoteller is an experimental AI music analysis engine that listens to a song and produces a comprehensive profile covering both lyrics and music. Users can search for an artist and song title or paste a YouTube URL into the search box, and in under a minute the engine returns a structured analysis: a lyrics summary, moods, themes, language detection, explicit content flagging, genres and subgenres, instruments, BPM, key, vocal type, and the golden minute, which is the highlight section including the chorus. The tool is designed to simplify how music lovers understand and organize their music, and for industry professionals it enables automatic tagging that makes catalogs easier to discover across digital service providers, powering search engines, playlist creation, recommendations, and audience profiling. Sonoteller offers dedicated API endpoints for music analysis, lyrics analysis, and sections tagging, which can be synced with catalog management workflows, and it provides DDEX-compliant metadata including lyrical themes for labels and publishers delivering to DSPs. The product is currently in beta, with the site noting that users should allow for occasional issues and delays, and YouTube videos are used for demo purposes only, with the API requiring users' own music files for production use. Sonoteller has been featured by Fast Company and Product Hunt, and it has been acquired by Chordal, a music technology company, which announced the acquisition and continues to develop the product's features for music supervisors and content companies. The engine also enriches music descriptors for music discovery and distribution, and it offers a special discount for music labels and publishers who apply through the site. The engine also enriches music descriptors for music discovery and distribution, and it offers a special discount for music labels and publishers who apply through the site. Sonoteller has been featured by Fast Company, Digital Trends, and Product Hunt, and the press coverage highlights its usefulness as a free AI tool. The product is currently in beta, with the site noting that users should allow for occasional issues and delays, and YouTube videos are used for demo purposes only, with the API requiring users' own music files for production use.

Sonoteller Core Features
Lyrics analysis
Automatic summary of a song's lyrics, including moods, themes, language, and explicit content flags.
Music analysis
Identifies genres, subgenres, moods, instruments, vocals, BPM, and key.
Golden minute detection
Pinpoints the highlight section of a song, including the chorus.
YouTube demo mode
Analyze any song by searching an artist and title or pasting a YouTube URL.
API endpoints
Dedicated endpoints for music analysis, lyrics analysis, and sections tagging.
DDEX-compliant metadata
Enriches catalogs with delivery-ready metadata including lyrical themes for DSPs.
Fast analysis
The engine returns results in about one minute per song.
Catalog-scale tagging
Designed for labels and publishers managing large music catalogs.
Who is Sonoteller for?
Sonoteller serves music lovers, industry professionals, and companies that need structured metadata about songs. Music supervisors and content companies use it to manage catalogs and find the right tracks for briefs, since the auto-tagging covers genres, moods, instruments, BPM, and key. Music labels and publishers can use the API to enrich their catalogs with DDEX-compliant metadata, including lyrical themes, to improve discovery on streaming platforms. Playlist curators and DJs can analyze tracks to understand their musical attributes before programming sets, and music journalists or researchers can get objective summaries of lyrics and composition. Casual music fans can paste a YouTube link to learn what genre a song is, what mood it carries, and where the highlight or golden minute falls. Because the product is in beta and free to test, it also suits hobbyists who want to explore how AI describes music, and the partnership with Chordal makes it a practical tool for sync licensing and catalog management workflows. The tool also serves music educators who want to break down songs for students, and data-driven marketers who need consistent music metadata for campaigns. Streaming platforms and music tech startups can use the API to enrich their own catalogs and recommendations, and the free demo makes it easy for curious listeners to test how AI describes their favorite tracks before contacting the team about production use.
Sonoteller Use Cases
Paste a YouTube link to learn the genre, mood, BPM, and key of a song you just discovered.
Tag a full music catalog automatically before delivering it to streaming platforms.
Find the golden minute of tracks to pick the best clip for promotion or sync briefs.
Check whether a song contains explicit content before programming it on a radio playlist.
Analyze instrument lineups and vocal types when building genre-specific playlists.
Enrich music descriptors for discovery and distribution with the Sonoteller API.
Sonoteller Pros and Cons
Pros
- Free to test with YouTube links, with results in about a minute.
- Covers both lyrics and music metadata in one analysis.
- API support enables catalog-scale auto-tagging for industry users.
- DDEX-compliant output fits existing DSP delivery workflows.
- Backed by Chordal, an established music technology company.
Cons
- The product is in beta and may have occasional issues or delays.
- YouTube is demo-only; production use requires your own music files via the API.
- Detailed pricing for API access is not published on the site.
FAQ About Sonoteller
Sonoteller Pricing
Freemium: free demo analysis via YouTube search; API access for labels and publishers is custom-priced, with a special offer of up to 50% discount for industry professionals.
Check official pricingFree demo
Analyze songs via artist/title search or YouTube URL, about one minute per song, for demo purposes.
API
Dedicated endpoints for music analysis, lyrics analysis, and sections tagging for labels and publishers.
Sonoteller Alternatives
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Musicfy
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Klangio
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