# musictheory.net

6 Hacker News commenters recommended musictheory.net and 0 criticized it, November 2025 to November 2026. It was recommended in 2 of 13 months.

**Verdict:** People recommend it as a well-stocked place to learn music theory through interactive lessons and exercises. The mobile version is iOS only.

## Why people recommend it

- Robust lessons and interactive exercises (3 comments): "depending on the subject, I've created tools that function as little mini games, and have added test cards with spaced repetition" ([source](https://news.ycombinator.com/item?id=48705154)) "This one has this nice chord progression excercise." ([source](https://news.ycombinator.com/item?id=48500608)) "has a very robust set of exercises and lessons" ([source](https://news.ycombinator.com/item?id=48506916))
- Good for music theory basics (2 comments): "If you want to learn the mumbo-jumbo other commenters are using freely" ([source](https://news.ycombinator.com/item?id=48631038)) "I just think it's a very good resource for Music Theory 101" ([source](https://news.ycombinator.com/item?id=49584413))

## What people warn about

- Mobile version is iOS only (1 comments): "their mobile version is for iOS only" ([source](https://news.ycombinator.com/item?id=48639253))

## Alternatives hackers recommend

- [Piano by ear memory game](https://hackerapproved.com/p/piano.md): 35 recommend
- [OnKey](https://hackerapproved.com/p/onkey.md): 23 recommend
- [Music Theory for Programmers](https://hackerapproved.com/p/music-theory-for-programmers.md): 13 recommend
- [Soundslice](https://hackerapproved.com/p/soundslice.md): 9 recommend
- [Vocal Guide](https://hackerapproved.com/p/vocal-guide.md): 7 recommend

## Cite as

Hacker Approved, "musictheory.net", https://hackerapproved.com/p/musictheory-net/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).