Bosca Ceoil v2.0


I’ve very happy to announce a brand new version of my beginner’s music making tool Bosca Ceoil! This is version 2.0, the first major update since it was released in 2013. This new version of the tool is a significant update, and adds lots of features and improvements. Head to to download it!

If you’re totally new to Bosca Ceoil, the new site should tell you everything you need to know about what it is and what it can do. If you’ve used it before, here’s what’s changed:


Midi and XM Support

A major problem that Bosca always had is that it was kind of a dead end: if you made a song with it, you could save it as a .ceol, or export it as a .wav – but that was that.

So one of the most important things that’s new is support for exporting as a midi file! Midi files are supported by lots of popular music applications, so this means that it’s now possible to, for example, use Bosca to compose the actual notes, and then later import the song into something like FLStudio so you can add VST instruments.

Also, in addition to midis, Bosca can now also export .XM files and .MML files, thanks to contributions by Rob Hunter!


Resizable Window

I made Bosca Ceoil the same way I make games – with a fixed resolution, running at 60FPS. Which is great for games, but not so good for an app that you might want to leave running in the background while you work on other stuff, say.

The new version of Bosca has a proper resizeable window, so you can see a lot more of the song you’re composing. It’s something it should have had all along, and it makes it infinitely nicer to work with!

It’s also gotten some major performance boosts with caching and CPU throttling, and is generally just much happier about running in the background than it used to be.


Nicer GUI

Bosca’s GUI has had a makeover. Things are generally brighter, clearer and more responsive!

Web Version

Thanks for Chris Kim, you can now use Bosca right in your web browser, without downloading anything! Try it here!


Built in Tutorial

At long last, Bosca has a built in tutorial, with nice, clear little pop up windows! This is something I’m really happy about – Bosca’s a beginner’s tool, and this does a lot to make it that bit more accessible.

Bosca Ceoil is a completely free, open source project, and I’m very grateful to the contributions others have made to it – especially Chris Kim for his flash web port, Rob Hunter for writing the .XM and .MML exporters, and Damien L, who forked Bosca back to Air 2.6 so that it could be used on Linux. Thank you so much for your help!

Hope you enjoy the new version!


27 Comments so far

  1. Micah on July 24th, 2015

    This is rad, Terry. I love it.

  2. JBantha on July 24th, 2015

    Excellent. Thanks a lot for the update on what already was a great software.

  3. Willem on July 25th, 2015

    Thank you so much Terry! This tool was already amazing and now I’m WAY TOO EXCITED about the resizable window 😀

  4. CahootsMalone on July 25th, 2015

    The ability to limit the available notes to those within a given scale or chord is quite useful and the ease with which it’s possible to do so is excellent.

  5. lopinjop on July 26th, 2015

    This is a fantastic program. I’ve been using it to compose music for the past 6 months since I’ve found it and I’m incredibly exited to be able to export what I’ve done to Midi and experiment on different platforms! This is seriously the perfect beginner’s tool to music tracking. I actually recently used Bosca Ceoil to teach the basics of music to a Boys and Girls Club group and it went over really well. I hope to continue using it as a teaching tool. Thanks so much for the added support for this powerful tool!

  6. M539 on August 11th, 2015

    Such a great update! I even made a version of Pushing Onwards with midi guitars in Bosca Ceoil! All ready for upload!

  7. Joxynox on August 22nd, 2015

    Thanks for the update, can we get a demo from you to see what can be do with this software? 😀

    (Ps : I love VVVVVV o/)

  8. RD on September 8th, 2015

    Your software is so good I wanna make babies to it

  9. Jaime on December 9th, 2015

    Hey terry, Buscaceoil es super cool, i follow you since a couple of years and i have used this program to create tiny compositions for some of my animated shorts

    so… Thanks 🙂

  10. A dude on January 27th, 2016

    i closed it and qhen i came back it keep opening a ‘boscaceoil.exe has stopped working’ message
    i restarted my pc and even reinstaled bosca ceoil but it keeps showing the same message :,(
    what do i do? (i use windows 7)

  11. lus on July 13th, 2016

    Bosca is awesome!

  12. Jeff K on May 27th, 2017

    You don’t know how grateful I am to have access to this resource for free. This is everything I’ve ever wanted in a basic music making program, and it excludes everything in sound design that’s too complicated for me to understand! It’s absolutely perfect

    Thank you so much Terry.

  13. Matt B on January 31st, 2018

    Adobe air isn’t supported on linux anymore, this means it is kinda hard to install it.I would’ve tried it if I could, please add linux support

  14. Terry on January 31st, 2018

    Ack, that’s a shame.

    I’m still interested in doing a full haxe/C port, but the software depends on the sion synth library, and it doesn’t look like anyone is actively working on it…

  15. Nice Guy #34 on February 22nd, 2018

    I’m confused as to why the online version of Bosca Ceoil isn’t working. There are certain devices that I own that can’t download and run the Bosca Ceoil offline, so I normally use the online version for these devices, since that actually works. If you know why this is could you please fix it.

  16. Terry on February 22nd, 2018

    Working on it!

  17. JJCUBER on June 9th, 2018


    I first found it from a video made by Brackeys, and I am so glad I did!! I knew the minute that I started using it that I would be able to create good music with it, mainly because the UI is simple, yet has a ton of tools and sounds!! I tried using other softwares, however they seemed to be too confusing and complicated for me. I created a good song within the first hour of having this, which is something I can’t say for ANY other software!!

    *** The one thing I wish was a thing, was a way to insert an empty column in-between some arrangement columns, because when I wanted to add a spot near the beginning, I had to manually move everything over.

    (If there is a way to do this already and I am being stupid, could you please by change let me know? Thank you ^_^)

  18. Louis C. on July 11th, 2018

    This tool is very useful for beginners getting into sound design. I found this from a YouTuber called Brackeys and once I started using it, I was able to make a short 15 second loop in 10 minutes, with no skill in sound design.

  19. Wohlf_craft on October 3rd, 2018

    Hey Terry! I think that the online version should have enabled flash button. I cloned it on GitHub and I uploaded it to Thimble (By Mozilla) and I made a enable flash button! The reason was that at school they had disabled flash on those kinds of websites so I had to make a version with a flash button! Thimble for some reason cannot run .swfs so I want to upload it to GitHub so I can publish it with and use it at school. Because my domains are blocked by the filter! RIP. Btw I can’t email you because your cahctpa is down. Hope you can get it back up soon. Email with the website provided above!

  20. Rafa -from Spain on November 7th, 2018

    Amazing program…. I love it and I’m all the time doing songs for games.
    As a comment for those people who need to know: shift left clic insert a column.
    ctrl left clic (or directly right clic) delete a column.
    All of this in the bottom line where you select columns to play.
    Thanks for developing this program.

  21. Xero on March 8th, 2019

    Can you please update it? I would really like to be able to do glissandos and triplets. More chiptune synths would be welcome too.
    I tried using other music making tools but this is my favorite even without glissandos or triplets.

  22. Rick Christy on February 7th, 2020

    This program is really well made! I am very happy I found this on Question: do you have plans to add any keyboard shortcuts to the /- buttons or instrument picker?

    That would be most welcome.

    Thank you!

  23. J on May 20th, 2020

    Dear Terry,
    I was so excited to use bosca ceoil and I heard it was an exceptional DAW for pixel art games. Unfortunatley, my Macbook pro being a Macbook pro, did not allow me to open the application simply because boscaceoil needs to be updated to work with macOS Catalina. Please, have a 64-bit build for Bosca Ceoil. Please.

  24. Itai levi on June 11th, 2020

    Hey Terry I hope you see this comment. I’m admiring your work! Bosca Ceoil is my favorite app for creating music! It is fun , easy , and you can create even real songs! I really hope that you will continue to make the app better, add features , and new stuff to make it even better. please don’t stop your amazing work! I’m waiting for the next update eagerly! and if Bosca Ceoil had a premium option which you could buy i would definitely buy it because I love it!

    Thank you so much for creating Bosca have a nice day

  25. Christopher, fellow game dev on June 23rd, 2020

    Thanks soooo much. This makes everything so much easier, but, any new updates coming? This simplistically awesome program could use a couple of extra goodies. *wink wink*. Honestly though there is no other program like it, thanks a bunch for letting fellow game developers use it

  26. Ethan Alexander Lancaster Ist on August 13th, 2020

    Please Make Another Update For Bosca* I Beg Of You To Do So*

  27. MansterSoft on October 23rd, 2020

    Love this tool! It’s so simple.

    The only thing it ABSOLUTELY NEEDS is MIDI Out.

    This way you could control VST instruments and sync its tempo to hardware.

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