Links
Everything here is free, needs no account, and doesn't collect anything about your child. These are the ones I'd open with a class, and that's a higher bar than the ones I'd just let students use. Tap a picture to open the site.
Thirteen small experiments, and each one explains an idea by letting you push it around. Start with Song Maker. It's a grid, you click squares, and a minute later you've written something.
Ages 5 and up
Composers, instruments and a long-running podcast, all written for children instead of at them. The games on note names and rhythm are really good practice.
Ages 6 and up
Listen, play, conduct and compose, all built around a real orchestra. It's the best answer I know to "what does a conductor even do?"
Ages 6 and up
Instruments and composers for Kindergarten through 6th grade, with listening built in. It's great for a child who's decided they like one instrument and wants more.
Ages 5 and up
Plain, fast drills on reading notes, plus ear training. It isn't exciting and it isn't trying to be. This one's for the student who wants to get really quick at reading music.
Ages 9 and up
A little bird that plays the cello. Drag to bow the strings and play real pieces, or make up your own. It's a great first look at how a string instrument works.
Ages 5 and up
Four singing blobs, from soprano down to bass. Drag them up and down and they harmonize with each other. It's instant opera, and a sneaky lesson in voice parts.
Ages 5 and up
Pick an instrument from anywhere in the world, hear what it sounds like, and then build a short tune with it. You'll find it on the Arts & Culture play page.
Ages 7 and up
Draw with color and line, and your picture plays back as music. It's perfect for the child who'd rather paint than practice.
Ages 5 and up
The painter Wassily Kandinsky said he could hear colors. Click around one of his paintings and hear what he might have heard.
Ages 6 and up
The Blob Opera singers are back, and this time they're making beats out of Beethoven. Mix rhythms and melodies and hear a famous piece turn into something new.
Ages 6 and upNo account, no payment, no ads aimed at children, and nothing that asks your child to type in their name. If a site wants a login before it'll do anything, it doesn't make the list.