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Dev tools · alternatives · 2026

24 alternatives to Contrapunk – Real-time counterpoint harmony from guitar input

Hi HN, I built Contrapunk because I wanted to play guitar and hear counterpoint harmonies generated in real-time. It takes audio from your guitar, MIDI player or your computer keyboard and generates harmony voices that follow counterpoint rules to generate harmonies. You can choose the key you would like to improvise/play in and the voice leading style and which part of the harmony you would like to play as, as well. macOS DMG: https://github.com/contrapunk-audio/contrapunk/releases/tag/... Source:…

Contrapunk is a macOS audio tool that generates real-time counterpoint harmonies from guitar, MIDI, or keyboard input. It analyzes incoming audio and creates harmony voices that follow classical counterpoint rules… 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, 1 of them free or with a free tier.

  1. 1

    Almost a year ago someone stumbled upon our hobby project and posted it to HN (edit: https://news.ycombinator.com/item?id=33999162). It was magical to see so many of you enjoy something we built for our love of music. We’re back today with a real product and are excited to see what you think! riffusion.com lets you create original music via short, shareable audio clips called “riffs”. You describe the lyrics and a musical style to generate riffs complete with singing and custom artwork in a few seconds. From inspiring musicians, to wishing your mom a ‘good morning!’, we are…

    2023 · riffusion.com · its alternatives →

  2. 2
    Mozart AI▲694

    A Generative Audio Workstation with VSTs

    2025 · mozartai.com · its alternatives →

  3. 3AS
  4. 4

    Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

    8d ago · guitoro.com · its alternatives →

  5. 5AS

    Hi Hacker News, I've created Chord Nebula, a simple web-based game designed to help users learn and practice piano chords, basic progressions, and harmony fundamentals. The game integrates with MIDI keyboards, allowing you to play chords in real-time and receive immediate feedback based on the key you choose. GitHub Repository: https://github.com/yottanami/chord_nebula Live Demo: https://chords.yottanami.com Requirements: To use Chord Nebula, you'll need a MIDI keyboard connected to your computer. Current Status: Chord Nebula is still a simple project. I'm…

    2024 · chords.yottanami.com · its alternatives →

  6. 6
    TwoShot▲347

    Create and remix music with AI

    2024 · twoshot.app · its alternatives →

  7. 7

    Discover SoundGate’s AI-powered guitar learning experience with real-time feedback and personalized practice.

    Jul 2026 · soundgate.ai · its alternatives →

  8. 8

    Search any song, get a Gameboy version. Emulates Nintendo's Sharp LR35902 sound hardware: 2 pulse waves for melody/harmony, 1 wave channel for bass, 1 noise for percussion. Finds MIDI sources, parses tracks, maps to GB roles, resynthesizes with Web Audio. Everything runs client-side. Site: https://www.wario.style Open source: https://github.com/b1rdmania/motif Hobby project, non commercial, so please don't sue me.

    Jun 2026 · wario.style · its alternatives →

  9. 9

    Draw.Audio is a free online music maker. Draw notes on a grid and hear them play back instantly — a browser-based synthesizer, sequencer, and visual instrument.

    2024 · draw.audio · its alternatives →

  10. 10

    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 →

  11. 11

    Just tell your guitar pedal how to sound

    May 2026 · jamtime.ai · its alternatives →

  12. 12

    Generative AI for audio made simple

    2023 · ai.meta.com · its alternatives →

  13. 13KS
  14. 14

    Tones is a simple, open, collaborative music-making platform. All tones are created using the built-in synthesizer.

    2018 · tones.fm · its alternatives →

  15. 15

    Keyboard-controlled music sequencer, sampler, and synth - kofigumbs/typebeat

    2022 · github.com · its alternatives →

  16. 16
    Nada▲255

    Compose music with just your voice

    Jun 2026 · tunelab.id · its alternatives →

  17. 17
    Jamboree▲102

    Multiplayer synthesizer

    Jul 2026 · jamboree.space · its alternatives →

  18. 18

    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 →

  19. 19

    A powerful realtime node-based audio synthesizer. Contribute to monadgroup/axiom development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  20. 20

    AI that turns your melody into a full arrangement

    Feb 2026 · apps.microsoft.com · its alternatives →

  21. 21TZ
  22. 22

    GuitarConvert is an advanced online tool that transcribes any guitar audio file (MP3, WAV) or YouTube video into accurate guitar tablatures and MIDI files in seconds. With its dedicated AI model trained specifically on guitar sounds, it extracts notes, rhythms, and string positions with unmatched precision. You don’t need to install anything. Simply upload your recording, and GuitarConvert instantly delivers high-quality sheet music you can download in PDF, MIDI, or MusicXML format. Whether you’re a guitarist, teacher, composer or arranger, this tool saves hours of manual transcription work…

    2021 · latouchemusicale.com · its alternatives →

  23. 23

    Contribute to andrewfader/blokkily development by creating an account on GitHub.

    9d ago · github.com · its alternatives →

  24. 24WB

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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 →