YouTube can repeat a whole video, and that is where it stops. If you want the eight bars of a guitar solo, the bridge you keep missing, or one line of a song you are learning, you end up dragging the progress bar back by hand, over and over. Mixtuby's A-B loop does that part for you. Mark where the section starts and where it ends, and the player jumps back to the start every time it reaches the end. It works on any track in any playlist, including YouTube playlists you paste in yourself.
Why It Works
A loop turns a song into a practice tool. Guitarists and pianists run a tricky passage twenty times without touching the screen. Singers drill one phrase until the breath lands in the right place. Dancers repeat the eight counts they are choreographing. Language learners replay a sentence until they can hear every word. You choose how many times the section plays — once, a set number of times, or until you stop it — and what comes next — carry on with the rest of the song, stop, or move to the next track.
Why Mixtuby
The loop runs on top of YouTube's official embedded player, so the video plays exactly as it does on YouTube and nothing is downloaded. Each track keeps its own loop, so a playlist can hold a different practice section in every song. Combine it with per-track speed from 0.25x to 2x to slow a passage down while you learn it, then bring it back to full speed. Free, no account, in any browser on phone, tablet, desktop or TV.
History
Musicians looped long before software did. In the tape era they spliced a section of tape into a physical loop and let the reel run it round. Cassette decks and later CD players added an A-B repeat button precisely because students and transcribers needed it, and practice apps kept the idea alive.
Video sites never did — on YouTube the smallest unit you can repeat is still the whole video.
Legacy & Influence
A-B repeat is the quiet workhorse of music teaching. Transcribing a solo by ear, learning lyrics in another language, or nailing a dance routine all come down to hearing the same few seconds many times. Putting that button on top of YouTube's catalog means almost any performance ever filmed can become the lesson.
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A-B Loop Player for YouTube — FAQ
Can YouTube loop only part of a video?
No. YouTube's own loop repeats the whole video. Mixtuby adds an A-B loop on top of YouTube's embedded player, so you can repeat any section you choose.
How do I set the loop points?
Open a track's settings, set where the loop starts (A) and where it ends (B), and switch the loop on. The player returns to A every time it reaches B.
Can I choose how many times it repeats?
Yes. Pick a number of repeats or let it loop until you stop it, then choose what happens next — continue the song, stop, or skip to the next track.
Can I slow the section down?
Yes. Every track has its own speed, from 0.25x to 2x, so you can loop a passage slowly while you learn it and speed it up as you get it right.
Does it work on my phone?
Yes. The A-B loop works in any modern browser on phone, tablet, desktop and TV, and you can install Mixtuby as an app from the browser menu.
Is it free?
Yes. The A-B loop is free and needs no account. Loops save automatically in your browser.
