Cyborg Llama: the Rehearsal App

Practice your ensemble music at home the best way possible - WITH your ensemble!


Cyborg Llama brings the rehearsal to you, so you can keep practicing ensemble music, even at home.

✅ Use it for yourself, with friends or your students.

✅ Make a virtual ensemble up to 200 people without any editing.

✅ Customize a click-track with tempo changes and ritards and accelerandos.

✅ Slow down and drill tricky passages in your ensemble music.

✅ Play along with professional pianists from our audio repertoire library.

✅ Option to export videos individually (pre-synced) for further polishing in an external video editor.

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Who We Are


We are the brother/sister creators of Cyborg Llama.

When the COVID-19 pandemic hit the USA in March 2020, Joelle needed to find a way to move her youth orchestras online.  She was surprised to find no app to rehearse online, an easy way to make virtual ensembles, or even a simple way to record with backing tracks.  She complained to Garrett.

Garrett made Cyborg Llama.

Since then, not only have Joelle's orchestras used CL to practice and perform ensemble music, but also a capella groups, string quintets, high school orchestras, Suzuki group classes, guitar ensembles, and many private studios have used Cyborg Llama to make music (from 29 different countries)!

Joelle is a violist and teacher who lives with a hermit crab in Maryland.  Garrett is a developer and lives in Washington with two cats.

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How Does it Work?

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Cyborg Llama is a web-app.  It doesn't need to be installed, and you don't need to sign up.


Cyborg Llama is available on the Chrome or Firefox web browsers for anyone with a Google Account.


   Compatible with any internet-connected device (except for iOS products)

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    Personal data stored on your Google Drive, and  shared only with your collaborators 

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     Free to use the free version


Tell me more!

Ready to try it yourself?

demo of performance
excerpt from an arrangement of Ode to Joy (arr. Manookian/Arnhold)
demo of performance
Schubert Cello Quintet, mvt 2

What People are Saying

Cyborg Llama is easy, efficient, fun, and rewarding:

"I think it's really fun to get to be in an orchestra[...]and be able to use an app like this to make it easier! I also love playing my viola with other people"

CK, student

"Cyborg Llama is awesome! It's super easy to use and my kid really likes being able to play along with the teacher track. When it's time for him to make his own recording, he can have as many tries as he likes. As a parent, I love that I don't have to be involved in his practice/recording--he's 8 and can do it 100% on his own. Yay!"

"Cyborg Llama is an intuitive learning tool which my 12 year old finds easy to use. The practice mode allows her to keep trying until she perfects the piece. The individual mode gives her the opportunity to record and playback the music and evaluate how it blends with the other pre-recorded work. Overall an excellent tool for all musicians."

SV, parent

"Recording and remote collaborating is quick and easy!"

"I think Cyborg Llama is super easy to use. You can listen back to yourself in Practice Mode and easily correct your mistakes.  It sounds awesome when everything is put together and it's super fun"

Mark Janello, faculty Peabody Conservatory

SK, student

"This app makes remote collaboration easy and accessible. It also works seamlessly with external microphones so that you can easily use the app for casual and professional projects alike."

The app was thoughtfully designed with ensemble musicians in mind, but can easily be used for individual projects and as a practice tool.

Gavon Peck, freelance violist