Life & fun · alternatives · 2026

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A gentle introduction to music theory (in ruby) launched in 2014; newer entries below may have overtaken it.

1. 1
   Hello Ruby▲107

   An illustrated storybook teaching Ruby to kids

   2014 · kickstarter.com · its alternatives →

2. 2
   Hello Ruby▲62

   Adventures in coding

   2015 · amazon.com · its alternatives →

3. 3
   The Changelog #202: 23 Years of Ruby with Matz (Yukihiro Matsumoto)▲79

   The origins of the Ruby programming language

   2016 · changelog.com · its alternatives →

4. 4
   The Artist Hunt▲108

   An intuitive way to discover music

   2014 · its alternatives →

5. 5
   Reasonably Sound - 1: The Ear▲55

   A discussion on sound and how we hear things

   2015 · americanpublicmedia.org · its alternatives →

6. 6
   Flat for Education▲8

   Music learning app from theory to composition

   2017 · flat.io · its alternatives →

7. 7
   Why's Poignant Guide to Ruby▲65

   A Poignant Guide (!!) to learning Ruby

   2015 · its alternatives →

8. 8
   KRFT 1.5.0▲110

   A modular instrument for music production

   2017 · studioamplify.com · its alternatives →

9. 9
   A small, simple music theory library in C99▲57

   Western music theory library in C. Contribute to thelowsunoverthemoon/mahler.c development by creating an account on GitHub.

   Feb 2026 · github.com · its alternatives →

10. 10
    RubySteps▲66

    A daily coding practice.

    2014 · patmaddox.com · its alternatives →

11. 11
    Interactive Circle of Fifths▲85

    A simple music theory helper tool

    2022 · muted.io · its alternatives →

12. 12
    Capo▲85

    A new way to analyze and learn to play music

    2014 · supermegaultragroovy.com · its alternatives →

13. 13
    Linum – The simple musical notation and synthesizer▲5

    The simple musical notation and synthesizer

    Feb 2026 · linum-notation.org · its alternatives →

14. 14TS
    Ten Steps to an Algorithmic Song▲6

    Ten steps to an Algorithmic Song

    2020 · abrie.github.io · its alternatives →

15. 15PL
    Pitch – Learn to sight read music▲6

    2015 · practicemakesperfect.education · its alternatives →

16. 16
    Dictoterix▲60

    Language learning service built around the dichotic method

    Sep 2026 · dictoterix.com · its alternatives →

17. 17
    TryRuby▲33

    Start learning ruby within 15 minutes, curated by CodeSchool

    2014 · its alternatives →

18. 18
    LightNote▲4

    Interactive Music Theory From First Principles

    2016 · lightnote.co · its alternatives →

19. 19MT
    Music theory taught by an experienced university professor▲5

    2013 · musivu.co · its alternatives →

20. 20PG
    Phase – Generate sounds from mathematical functions▲8

    2020 · bafs.github.io · its alternatives →

21. 21
    Tone.js▲7

    A framework for creating interactive music in the browser

    2017 · tonejs.github.io · its alternatives →

22. 22UT
    Universal Tone Generator – A Generative Music Experience▲8

    Univeral Tone Generator.

    2020 · utg.ezralafleur.com · its alternatives →

23. 23
    Lotus▲3

    A complete web framework for Ruby

    2015 · lotusrb.org · its alternatives →

24. 24
    To learn Music Theory, I built a Chord Detector App▲6

    2021 · apps.apple.com · its 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 →