About
Chord ai is an advanced AI music analysis app built by Nomad AI and Bellec Research. It leverages deep learning algorithms to automatically detect chords, beats, tempo, and key signatures from virtually any song — no manual transcription required. Musicians, students, and hobbyists can load tracks from YouTube, SoundCloud, local audio files, or use their device microphone for real-time recognition. The app features a comprehensive chord dictionary with diagrams for guitar, piano, and ukulele, making it easy to learn how to play any song on the spot. Its beat and downbeat tracking segments songs into bars and beats, helping users understand song structure quickly. The instrument separation feature splits audio into four stems — bass, vocals, drums, and other — which can be exported as individual .wav files. Chord ai also includes Audio to MIDI conversion powered by Spotify's Basic Pitch research, turning any audio recording into a playable MIDI track. Lyrics recognition is powered by OpenAI's Whisper model, delivering high-quality speech and lyric transcriptions. The free version offers core functionality, while a paid upgrade unlocks the complete feature set. With over 500,000 users and a 4.7+/5 rating on both the Apple App Store and Google Play, Chord ai is a go-to tool for anyone wanting to learn, analyze, or transcribe music efficiently.
Key Features
- AI Chord Recognition: Uses deep learning to identify major, minor, seventh, diminished, augmented, and altered chords from any audio source with high accuracy.
- Beat & Downbeat Tracking: Analyzes tempo and segments songs into bars and beats so users can clearly grasp a song's rhythmic structure.
- Instrument Separation: Splits any song into four stems — bass, vocals, drums, and other — and allows export of each as a .wav file.
- Audio to MIDI Conversion: Converts any audio track into a MIDI file using Spotify's Basic Pitch research, enabling further musical editing and playback.
- Lyrics Recognition: Powered by OpenAI's Whisper model to deliver high-quality speech and lyrics transcription for any song.
Use Cases
- Learning to play a song on guitar or piano by instantly identifying its chords and key without searching online.
- Musicians practicing along to songs by using real-time chord and beat tracking via the device microphone.
- Music producers separating stems from any audio track to remix or sample individual instruments.
- Songwriters transcribing lyrics and chord progressions from reference songs quickly using AI recognition.
- Music students analyzing song structure, tempo, and harmony for academic or personal study purposes.
Pros
- Highly Accurate Chord Detection: Praised by users for correctly identifying complex chords like major sevenths, dominant sevenths, diminished, and augmented chords — far beyond basic triads.
- Multi-Source Audio Input: Supports YouTube, SoundCloud, local audio files, and live microphone input, making it extremely versatile for different use cases.
- Comprehensive Music Learning Tools: Chord diagrams for guitar, piano, and ukulele combined with beat tracking and key recognition make it a complete learning suite.
- Free Tier Available: A solid free version is available, giving users access to core features without any upfront cost.
Cons
- Full Features Require Paid Upgrade: Advanced features like stem export, MIDI conversion, and full lyrics transcription may require purchasing the complete version.
- Primarily a Mobile App: The core experience is designed for iOS and Android, so desktop or web-based workflows are not fully supported.
- PDF Chord Display Limitations: Some users have noted that exported PDF chord sheets display chord names in a small font size, making them harder to read at a glance.
Frequently Asked Questions
What audio sources does Chord ai support?
Chord ai supports loading songs from YouTube, SoundCloud, local audio files on your device, or live input from your device microphone for real-time recognition.
Which instruments does the chord dictionary cover?
The chord dictionary includes diagrams for guitar, piano, and ukulele, helping you learn how to play any detected chord on your preferred instrument.
Can Chord ai convert audio to MIDI?
Yes. Chord ai includes an Audio to MIDI feature powered by Spotify's Basic Pitch research, which converts any audio track into a playable MIDI file.
Is Chord ai free to use?
Chord ai offers a free version with core features. A paid complete version unlocks additional capabilities such as stem export and full MIDI and lyrics features.
How does the instrument separation feature work?
Chord ai separates any song into four individual stems — bass, vocals, drums, and other — which can each be exported as separate .wav audio files for practice or remixing.
