Other tools
There's a plenty of opportunities to dive into different aspects of music theory and practice online
Awesome audio visualization
https://github.com/willianjusten/awesome-audio-visualization
A huge collection of materials on music visualization. With free webapps and downloads.
Google song maker
https://musiclab.chromeexperiments.com/Song-Maker/
To make a song, add notes by clicking the grid. Then, share your song with a link. You can also use a MIDI keyboard or sing a note into your mic.
Seeing music Google experiment
https://experiments.withgoogle.com/seeing-music
This is a tool for visualizing music. You can turn on your mic to sing or play sounds. You can also drop in your own audio or video file. Some modes – like Hilbert Scope and Spectrogram – show the subtle textures of sound. Others show the paths and shapes of different melodies.
Ableton - learning music
https://learningmusic.ableton.com/
In these lessons, you'll learn the basics of music making. No prior experience or equipment is required; you'll do everything right here in your browser.
Music calculations online
http://www.sengpielaudio.com/Calculations03.htm
A collection of useful music math tools of Alexander Sengpiel
Free Online Ear Training
https://www.earbeater.com
With EarBeater you can train your musical ear in more than 200 individual exercises covering intervals, chords and scales.
Teoria
http://saebekassebil.github.io/teoria/
It's a demo of a JS lib for music theory. It shows the compound waveform of any given chord. Once it sould be ported to Chromatone.center
Songcraft
https://songcraft.io/
The first all-in-one online platform for songwriters. 5 songs limited free plan.
Music pattern generator
https://github.com/hisschemoller/music-pattern-generator
Music Pattern Generator is an app to create musical rhythms. It sends MIDI data, so it won’t make any sounds by itself. For that you need to connect it to MIDI soft- or hardware that can handle MIDI data to produce sound.
Инструменты для преподавания и исследования музыки на русском
https://shorstok.github.io/3k-project/
Кварто-квинтовый круг, аппликатуры, клавиши, с возможностью скачать нарисованное
Gootar
http://www.gootar.com/
A huge online toolbox for guitar players by goddess 401
Computer readable notation
https://www.abcjs.net/
A format for typing music information in plain text files
The Music Lab
https://www.themusiclab.org/
We do citizen science to learn how the human mind creates and perceives music. Pick a game to get started!
Uke Buddy
https://ukebuddy.com/
A comprehensive tool to explore ukulele chords, scales and song tabs.
Sequencer64
https://www.sequencer64.com
Sequencer64 is a progressive web application that allows you to quickly sequence a 64-step pattern for a 9-sound sampler.
Tone.js demos
https://tonejs.github.io/demos
A collection of interactive WebAudio online apps built with Tone.js library
FarPlay
https://farplay.io/
The easiest, fastest & safest low-latency audio on the internet.