Pianolyze

Product Introduction

1. Pianolyze is a browser-based AI tool that analyzes and transcribes piano recordings into visual piano roll notation in real time. It supports MP3, WAV, FLAC, and M4A audio files, enabling users to study performances without requiring cloud processing or software installation. The tool operates entirely within the user’s browser, ensuring privacy and immediate accessibility.
2. The core value of Pianolyze lies in its ability to democratize music analysis by providing instant, privacy-focused transcription for piano students and professionals. It eliminates the need for manual note-by-note transcription while offering interactive features like variable playback speeds and harmonic exploration.

Main Features

1. Pianolyze uses AI-powered transcription to convert piano audio files into precise piano roll notation, displaying note positions, durations, and velocities with millisecond accuracy. The algorithm processes polyphonic recordings and complex jazz/classical passages without requiring internet connectivity after initial load.
2. Users can adjust playback speed from 0.5× to 2× while maintaining pitch accuracy, allowing detailed study of fast arpeggios or intricate chord progressions. The zoom function enables granular inspection of overlapping notes and timing nuances within the piano roll interface.
3. The tool includes harmonic analysis overlays that highlight chord structures, scale relationships, and voicing patterns directly on the piano roll. This feature supports MIDI-compatible exports for integration with digital audio workstations or sheet music software.

Problems Solved

1. Pianolyze addresses the time-consuming and error-prone process of manually transcribing piano performances, particularly for complex jazz improvisations or densely notated classical pieces. Traditional methods often require hours of replaying short segments and guessing note timings.
2. The primary user groups include jazz students analyzing solos, classical pianists decoding repertoire, composers reverse-engineering arrangements, and educators creating teaching materials from recorded examples.
3. Typical scenarios involve a student uploading a Bill Evans recording to isolate left-hand voicings, a performer slowing down a Rachmaninoff concerto passage to master fingerings, or a teacher extracting chord progressions from a live jazz ensemble recording.

Unique Advantages

1. Unlike cloud-based alternatives like AnthemScore or Melodyne, Pianolyze performs all audio processing locally in the browser using WebAssembly and TensorFlow.js models, ensuring zero data upload and compliance with strict privacy regulations.
2. The real-time visualization engine renders piano rolls with 10ms resolution while maintaining synchronization during speed adjustments, a technical achievement unmatched by most web-based music tools.
3. Competitive advantages include cross-platform compatibility (works on all modern browsers), no subscription fees, and the ability to handle 88-key piano recordings up to 24-bit/96kHz quality without performance degradation.

Frequently Asked Questions (FAQ)

1. What audio formats does Pianolyze support? Pianolyze accepts MP3, WAV, FLAC, and M4A files with sample rates from 44.1kHz to 96kHz and bit depths up to 24-bit. The system automatically normalizes input levels and filters non-piano frequencies for optimal transcription accuracy.
2. Is my audio data stored or transmitted externally? No audio data leaves your device—the WebAssembly-based AI processes files entirely in your browser’s memory, with all temporary data purged upon page closure.
3. Can I use Pianolyze offline? Yes, after initially loading the web app, all functions work offline except for future model updates. The AI engine is cached locally via service workers, requiring no persistent internet connection for transcription tasks.