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Life & fun · alternatives · 2026

24 alternatives to Harmodus Piano - Pure Tuning

Just Intonation piano & pro polyrhythm metronome

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    This is a keyboard in just intonation. It can play the notes a piano can. The big difference from a piano is that all the notes become consonant. At least, when you want to play a dissonant chord, you are clearly opting in to it because it's clear which notes are dissonant to each other. You won't bump into a dissonant note by mistake. You can play without knowing any music theory. Hit arbitrary notes with the rhythm you want, and the pitches will work. Not understanding the buttons is fine. Even rolling your elbow around your keyboard is fine. If you are a musician and press the wrong key…

    2023 · ad8e.pages.dev · its alternatives →

  2. 2

    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 →

  3. 3

    Fast and fun way to learn piano

    2015 · hellosimply.com · its alternatives →

  4. 4

    Play Piano on Widget, LockScreen, Dynamic Island

    2025 · apps.apple.com · its alternatives →

  5. 5

    Harmopark is a browser-based music tool that can be used for different purposes, ranging from visually grasping harmony concepts to playing around with chord progressions.

    2019 · harmopark.app · its alternatives →

  6. 6

    Compose like Bach (with the help this app)

    2015 · alexandernaut.com · its alternatives →

  7. 7

    🎹 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 →

  8. 8

    An online interactive and playable 19 tone equal temperament keyboard.

    2016 · academo.org · its alternatives →

  9. 9

    Visual guides for learning any piano song on the internet.

    2023 · chromewebstore.google.com · its alternatives →

  10. 10

    A complete practice toolkit for musicians 🎶

    2018 · apps.apple.com · its alternatives →

  11. 11

    I always found sheet music way too hard to read - and I literally spent a year at a company building a sheet music rendering engine. I wanted an app that would display music like the tutorials on YouTube, but not be focused on upselling lessons etc. like most current apps, and also would let me import my own files This works on MIDI files. If it’s a valid midi it probably plays. Since releasing, I did add a subscription for classical music - on a theory that most normal users don’t know what a midi file is. It changed about a month ago from an up front price to in app purchases and/or a…

    2023 · jacobdoescode.com · its alternatives →

  12. 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. 13

    Trustworthy tuner and metronome app

    2019 · its alternatives →

  14. 14
    Subdivide▲134

    Your practice, perfected with the ultimate metronome

    2024 · apps.apple.com · its alternatives →

  15. 15

    CASTOTO adalah platform terpercaya untuk para penggemar permainan slot online, menawarkan akses mudah ke bandar slot gacor dan situs slot resmi.

    2018 · note.kitchen · its alternatives →

  16. 16

    Hello HN! This is a Python app I've built for fun, while learning the Textual library, it's a piano/synthesizer app that you can play with the keyboard + mouse. You can see a demo video of it here: https://www.youtube.com/watch?v=0VXit110PcA You need to install FluidSynth before using it: https://www.fluidsynth.org/ It uses the Python bindings pyFluidSynth library: https://github.com/nwhitehead/pyfluidsynth And the General User GS soundfont: http://www.schristiancollins.com/generaluser.php If you try it out, i'd love to…

    2023 · github.com · its alternatives →

  17. 17SH

    I made a software library for displaying piano music 7 years back, and recently ported it to the web (which is now easier than even ever). It displays sheet music as you play, and let's you take snapshots of specific chords, then keeps a running list of chords as keyboard visuals (instead of just displaying sheet music). Just a simple tool for songwriting/ figuring out songs by ear, or just understanding music key theory (which I'm admittedly a still a beginner at).

    2025 · pianoboi.site · its alternatives →

  18. 18

    Browser music and piano studio with visual harmony tools

    May 2026 · coffeepiano.com · its alternatives →

  19. 19
    haptik▲80

    The first always-on metronome for Apple Watch

    2020 · haptik.watch · its alternatives →

  20. 20

    Play authentic sounds, rhythms & music scales

    2020 · apps.apple.com · its alternatives →

  21. 21PB

    Hi HN, I'm Erwin. I built a small free open-source utility that bridges Bluetooth LE MIDI keyboards into the new Windows MIDI Services stack so any DAW or Web MIDI app can use them as if they were wired. I bought a Roland FP-90X piano partly because it had Bluetooth MIDI. On my Windows 11 PC, pairing succeeded, but my DAW couldn't see the keyboard, and notes I sent from the PC never made the piano sing. After a regrettable number of evenings, I'd separated this into three independent bugs stacked on top of each other. The first one is the famous one: Windows only natively exposes BLE-MIDI…

    May 2026 · its alternatives →

  22. 22

    a platform for piano listening, focus, and practice tools.

    Jun 2026 · apps.apple.com · its alternatives →

  23. 23VC

    We're happy to present Veena Chromatic Tuner, an app we've developed for musicians, instrument makers, and ethnomusicologists who need more than just a standard chromatic tuner. Our goal was to create a tool that not only supports pitch detection but also provides deep support for diverse musical intonation systems and offers intuitive visual feedback. The Problem We're Solving: Many tuners are good for Equal Temperament, but has limited support when it comes to the Just Intonation, microtonal music, or the specific requirements of instruments like the Veena where fret positions are…

    2025 · play.google.com · its alternatives →

  24. 24

    An app to help you play classical music

    2019 · metronautapp.com · its alternatives →

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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 →