Welcome to the wonderful world of Mussila, an adventure full of music, monsters and exciting challenges.

Based on a musical curriculum this adventurous and creative game gives you the basic skills and tools to play and create your own music – with no experience required! Music is a universal language where no words are needed. The player progresses through skill building levels in a variety of games that focus on ear training, music theory, rhythm and melody with the aim of giving the player a solid musical foundation. Mussila is an exciting adventure that offers an easy entry into the world of music.

Mussila is designed to teach kids the principles of music through a fun game. Research shows that music education at an early age can boost brain development and preliminary surveys have shown that Mussila significantly speeds up the learning progress in music, with Mussila players scoring 20,2% higher in music theory compared to a non-playing comparison group. Mussila is based on a thoroughly planned curriculum, made to encourage the child’s self-esteem through accomplishment and fun play. It is a zero violence and gender-neutral adventure in which your child gains musical understanding they can build on for life.

Define rhythms by ear
Define melody by ear
Learn to recognise the instruments
Keyboard-Learn to play the piano
Get introduced to classical composers
Engaging skill building levels
Participate in interactive jam sessions
Customize the Mussila band
Catch a melody and travel through space
Make your own loops and beats
Record your voice and sounds from your surroundings
Create your own remixes of Mussila songs
Experiment with melodies and rhythms
Scratch the ‘vinyls’
Safe environment
Zero Violence
Simple interface
No Ads

About us:
The developers of Mussila are a dynamic group of people with background from the arts, music and technology. Based in Iceland, many traits of their Nordic home-country can be found in the scenes of Mussila, with volcanoes, lava and glacial rivers, all playing an integral part in the game’s storytelling. Rosamosi game studio was founded by Margrét Juliana Sigurdardottir, a DipRAM postgraduate from the Royal Academy of Music in London, and computer engineer Hilmar Thor Birgisson, an avid game player and developer. After receiving grants from The Icelandic Technology Fund and the Nordic Game Institute, they set up their talented team in 2015 with the aim of revolutionising music education by means of gaming and joyful approach. Rosamosi believes in music making being part of our everyday lives and that music education should be available for everyone.

Rosamosi is a part of Kids App Collective, a unique group of award winning app developers. Their Mussila app and the team has won numerous awards around the world. Their first game was nominated to the Nordic Game Awards 2017, Margret Juliana was Founder of the year for Iceland in the Nordic Startup Awards and won the GWIIN awards for education and research in 2017.

What’s New

Version 2.08

This version enhances the Mussila adventure, as it deepens and grows even more exciting. The update will expand the user experience and greatly enhance and enrich the educational value of the game. Mussila now includes 5 adventure games, each of which has their own musical approach.

1. The Magical Island
The main game, called Magical Island, is broken into four different paths; Volcano, Glacier, Desert and Forest. The Volcanic landscape focuses on melody, while you learn to recognize a variety of instruments within the glacier. In the clear, wide-open space of the desert the player learns to define rhythm. Each player earns stars while taking on these exciting challenges on the Mussila Island.

2. The Magical Forest-keyboard: The player has a chance to test his hard-earned skills by playing a song’s melody on the keyboard. A musical notation is shown on the screen. It starts out with a small and a simple melody but gets harder as the user progresses. The user is not required to know how to play an on-screen keyboard as Mussila will always be there to guide him through learning the melodies. When purchased this game is added to the skill building games of the Magical Island.

3. Mussila Planets: An adventurous tilt and tap game that takes the player on a journey between exotic planets, all the way from space down into the deep and mysterious sea. Along the way the player is faced with musical challenges such as catching the melody and avoiding the bad notes. The game includes original songs and a new arrangement of Beethoven´s Fur Elise.

4. Mussila DJ: This game encourages the players to create their own musical soundscape and to remix existing songs. Mussila DJ comes with a set of songs, loops and beats, which kids can add to by recording and creating their own. Capture sounds from the environment and voices through the microphone and add them to the collection of vinyls and loops. Layer them for a live musical performance and vary the speed and volumes – and scratch – like a real DJ!

5. Mussila Jam session: Each Jam session sets a different adventure scene and a fresh new song that serves as a musical playground for users together with the Mussila-band. In Mussila Jam Sessions users are able to fully customize and arrange their own musical creations by swapping in and out instruments that are being played and play on percussive instruments.

With this update the adventure deepens and grows into a world full of music.

Ratings and Reviews

4.7 out of 5
447 Ratings
447 Ratings
C-ivy ,

Music teacher approval

As a music teacher, I’m always looking for good educational music apps to supplement curriculum. I’m not sure how I would fit this into a classroom, but I tried it out at home with my own second grader and it was a big hit!
Pros: instruments sound like they should (unlike other apps I’ve tried where they sound very synthesized)
Ear training component is wonderful. Both rhythm reading and note reading.
The rhythms are complex right away, but easily identified. My son had to really listen to pick which rhythm was being played, but it wasn’t so hard he was frustrated.
Simple enough for young kids to use (probably pre-k+).
Engaging and cute. The format is simple and the layout was intuitive.
It’s free!

Cons: only one kid can play at a time!
There is not the ability for multiple user accounts.

Overall, a great little music theory app! Thank you!

irishdave1972 ,

Music Educator Disapproval

I do like that they are addressing key components of music (rhythm, instrument timbre, melody, etc.), but how the concepts are executed needs work. The rhythms are not quite accurate. This is critical to learning them correctly, especially when subdividing the beat into sixteenth note patterns. The instruments are poor digital imitations. A few of these could be confusing to a child because they make some sound similar. The melodic ear training is a good thing to include. I just hope if the rhythms of the melodies are more complex as you progress, that they would be more accurate than the strict rhythm identification sections.

Developer Response ,

Thank you very much for taking the time to write the review. The rhythms have been reviewed by two professional musicians number of times. There may however some errors have slipped through (there are a few hundred samples of them within the game) or they may have occurred in the programming which is quite complicated in a music app such as ours. We strive to keep the sound quality and performance as good as we can and that means that we are translating the music from one format to another several times and often manually too. We could not agree more that accuracy and quality of sound should be of highest standard, in particular for the beginners. We will look into this immediately and see if we can find these errors and fix them for our next update. Many thanks again for writing to us, it is well appreciated. All the best from us in the Mussila team.

arminator21! ,

Music theory educational game for kids and prents

This is a really good game for kids that want to improve their musical skills. My kids (3 and 5 years old) have been playing this game for many hours and had loads of fun. I can feel improvements on the order one, he's more aware of music in general and he understands the basics of music theory with no prior education in music theory. This is also a great game for prents to co-play and spend quality time together.


Rosamosi ehf.
200.5 MB
Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2017 Rosamosi ehf.
In-App Purchases
  1. Forest- Keyboard Free
  2. Mussila Planets Free


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

More By This Developer

You May Also Like