AI · alternatives · 2026

24 alternatives to Harmonic Analyzer
Learn how to play your favorite piano songs using ML
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites. Harmonic Analyzer launched in 2022; newer entries below may have overtaken it.
- 1
Pianolyze▲149Hey HN, I'm a pianist who's always been obsessed with understanding how great players think through harmony. What voicings are they using? How do they voice lead through changes? What's actually happening under their hands? Back in 2022, I built Harmonic Analyzer (https://www.youtube.com/watch?v=iNgSgvUmiOs) – a Mac app that used ML to transcribe polyphonic piano recordings. It got some traction, but I never quite finished it. Requiring users to download a Mac app felt like unnecessary friction, and I didn’t want to limit distribution to Mac users. I just shipped Pianolyze…
Nov 2025 · pianolyze.com · its alternatives →
- 2IV
2023 · webfft.net · its alternatives →
- 3

I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
Aug 2026 · simedw.com · its alternatives →
- 4
I made a tiny device for automatically recording digital pianosfrom $185/mo▲590Hey HN! A few years ago, I left my cushy big tech job to make hardware. And made the device I always wanted - an automatic piano recorder! I usually play piano improvisationally, and manually hitting record never meshed well with that. But there are always moments I wish I recorded, and now they are! Hopefully it scratches a similar itch for some of you as well! A few of the tech details: * built on an esp32-s3 * custom injection molded enclosure * BLE comms, sd card storage, DS1302 RTC * android & ios apps with Flutter * Shadertoy vfx support for video sharing - Chip
2024 · jamcorder.com · its alternatives →
- 5

- 6IT
Hey HN! I just shipped a project I’ve been working on called Maroofy: https://maroofy.com You can search for any song, and it’ll use the song’s audio to find other similar-sounding music. Demo: https://twitter.com/subby_tech/status/1621293770779287554 How does it work? I’ve indexed ~120M+ songs from the iTunes catalog with a custom AI audio model that I built for understanding music. My model analyzes raw music audio as input and produces embedding vectors as output. I then store the embedding vectors for all songs into a vector database, and use semantic…
2023 · maroofy.com · its alternatives →
- 7

Machine learning for precision drug discovery
May 2026 · harmonicdiscovery.com · its alternatives →
- 8

- 9
Melody ML▲185Easily separate audio tracks using machine learning
2019 · melody.ml · its alternatives →
- 10

- 11PM
2017 · blog.buildo.io · its alternatives →
- 12AP
I'm building a video conferencing app designed to facilitate better remote piano lessons. My hope is to solve a lot of the challenges piano tutors and new students deal with when taking lessons through Skype/Zoom. It leverages WebRTC's data transmission to send media, MIDI state, and (eventually) send sheet music files and other musical data. I'm surprised with how well the MVP has worked and would love to hear any feedback or suggestions!
2024 · keyboardconnect.com · its alternatives →
- 13

🎹 Memorize piano scales with ease! A piano practice program w/ MIDI support. Consider it an interactive reference manual - ZaneH/piano-trainer
2025 · github.com · its alternatives →
- 14

- 15

- 16

In 2020, Magenta released DDSP [1], a machine learning algorithm / python library which made it possible to generate good sounding instrument synthesizers from about 6-10 minutes of data. While working with DDSP for a project, we realised how it was actually quite hard to find 6-10 minute of clean recordings of monophonic instruments. In this project, we have combined the DDSP architecture with a domain adaptation technique from speech synthesis [2]. This domain adaptation technique works by pre-training our model on many different recordings from the Solos dataset [3] first and then…
2022 · erlj.notion.site · its alternatives →
- 17

Keyboard-controlled music sequencer, sampler, and synth - kofigumbs/typebeat
2022 · github.com · its alternatives →
- 18WB
2012 · blog.beatmaticapp.com · its alternatives →
- 19

- 20FA
Hi all, I've spent some time working on music demixing or music source separation algorithms, which take in a mixed song and output estimates of isolated components (e.g. vocals, drums, bass, other). I took a popular PyTorch model with good performance (Open-Unmix, UMX-L weights), reimplemented the inference steps in C++, and compiled it to WebAssembly for a free client-side music demixer.
2023 · sevag.xyz · its alternatives →
- 21

I'm excited to share with HN a new pet project I've been working on to explore how AI can create and explain harmonic chord progressions - Chord Variations. The project uses GPT-4 to generate unique and interesting chord combinations based on user input chord progression. It's akin to having a virtual musical assistant that can help non-musicians and musicians alike explore and create harmonious sound without needing any prior knowledge of music theory. The generated chord suggestions maintain a similar vibe to the user input. Alternative chord progression includes extended chords, chord…
2023 · chord-alt.vercel.app · its alternatives →
- 22

- 23

AI to detect your mood and pick your music
2020 · play.google.com · its alternatives →
- 24

Piano note detector. Contribute to apankrat/note-detector development by creating an account on GitHub.
2020 · github.com · its alternatives →
Also compare
- Pianolyze alternatives
- I've built a spectrogram analyzer web app alternatives
- I trained a 125M model to autocomplete piano on-device alternatives
- I made a tiny device for automatically recording digital pianos alternatives
- Mozart AI alternatives
- I trained an AI model on 120M+ songs from iTunes alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →