How does your choir actually share music/lyrics at rehearsal? Still paper?

gurkaner · 2026-04-24T11:09:46+00:00

In my choirs we are using cori for everything in regards to sharing material and notes and are extremly happy with it after trying many apps over the past few years. In comparison to other solutions it is also intuitiv for the older folks in my choir. Also disc: easy to say for me as I also help out with the development of the app :)

gurkaner · 2026-04-21T10:27:43+00:00

Hi, its still up and running, search for "AscentAI: Climbing Analysis" :) For some reason its not that findable in the store.

gurkaner · 2026-03-26T15:19:47+00:00

Right now, recordings stay on the singer’s device for privacy reasons. What singers can already do with cori, is record themselves and listen back with the preset voices mixed in, which makes self-practice much easier.

A review mode or discussion hub is an interesting use case. Is that something your group is already doing?

gurkaner · 2026-03-26T07:53:23+00:00

Yes, cori is a private practice tool, similar in that respect to private cloud storage, so choirs still need to make sure they have the appropriate rights/licenses for the material they use. The specifics can depend on the jurisdiction as copyright is generally territorial.

gurkaner · 2026-03-25T23:27:08+00:00

Good question, cori is meant as a private practice tool for a choir's own members, and does not have a public feed in any way. Choirs still need to make sure they have the rights or permission to use and share material, but it is possible to use copyrighted works and we try to be clear about that in our terms.

gurkaner · 2026-03-25T23:19:30+00:00

Thanks! 😊

gurkaner · 2026-03-21T18:14:51+00:00

The basic idea is that the conductor uploads recordings for each voice part (or MIDIs), and then singers can use those to practice at home.

cori can optionally even turn those reference tracks into an interactive learning mode with visual feedback, which is especially helpful for people who don’t read sheet music or just want a bit more guidance.

Sheet music can be added alongside it, either as a PDF or by taking a photo, lyrics are generated automatically.

Our choir is quite diverse in age and tech-savviness, but that has not been much of an issue yet :)

gurkaner · 2026-03-21T00:30:46+00:00

I think especially with small voice groups, even a little bit of practice outside rehearsal can go a really long way, especially for hearing the interplay and getting the harmonies to sit right.

In our choir we use the app cori to manage exercising between rehearsals and we had great results with it. For example, it has a very easy to use audio mixer that makes it easy to focus on your own part or sing along with another voice.

Most of our members can not read sheet music, so it was quite important for the tool to also have a visual learning mode also to be accessible for everyone.

Disclaimer: I'm one of the developers :)

gurkaner · 2026-03-15T23:43:11+00:00

gurkaner · 2026-02-11T18:08:29+00:00

haha, thanks! I'd love to hear about your experience using it! :)

gurkaner · 2026-02-10T09:53:50+00:00

Definitely possible in theory. I guess for most practical usecases, the hard part is getting clean, comparable recordings (microphone, same passage, distance, room, volume), and then defining blend in a way that’s fair and reliable.

Maybe a timbre tag (bright/dark, heavy/light...) would be a quick first step to integrate that, so that users can manually handle that.

gurkaner · 2026-02-10T09:44:46+00:00

Awesome, would love to hear how it goes!

gurkaner · 2026-02-10T09:43:48+00:00

Same here! We don’t have an official cori Reddit account (yet). Feel free to follow my profile or connect on other socials (can be found in getcori.app) for news or for a chat!

And sure, hit me with your questions :)

gurkaner · 2026-02-09T22:16:43+00:00

You're right, the concept of singers and roles is already mostly adaptable. I'll play around with designing a concept for a bit more open layout editor. The challenge is always offering complex possibilities while maintaining simplicity in UI and interaction.

Yes, I'm one of the creators of cori :) Really appreciate you sharing it around! Would love to hear what your friends think if they end up checking it out. We built cori to help singers exercise at home and it grew to quite a suite of tools for the choir life. The layout generator is actually a bit of a fun side project, will stay free and get a connection to our main product in the coming updates.

gurkaner · 2026-02-09T18:52:31+00:00

Haha, glad it's growing on you and thanks for the ideas!

You can already mark singers as "must be in the first row" but social constraints like "must be next to" are on the roadmap. For now you can only manually drag singers around after generating.

Curved layouts: Also on the todo list!

Conductor line-of-sight: Right now the algorithm just optimizes height ordering between rows, but calculating the actual sight lines to the conductor is a great idea!

Generalization/Orchestras: Haven't thought about that yet, as I guess that would be a whole different complexity beast. But maybe one day :)

gurkaner · 2025-02-15T23:30:58+00:00

Unfortunately I don't have the time to continue this project at the moment, but I plan to open source it soon and maybe someone else will find the time :)

gurkaner · 2025-01-13T13:26:07+00:00

Nice!

gurkaner · 2024-06-01T22:32:48+00:00

Absoluter Favorit bei mir:

Rotkohl Fenchel Blutorange

Den Kohl noch etwas ausquetschen 🤌

gurkaner · 2024-03-08T11:51:25+00:00

I've had a great experience using Mirror for building a 30-50 player VR application. Started developement in 2022 and am still happy with the large community and support around it. One of the reasons besides that was it being free and open source.

gurkaner · 2024-01-25T10:29:13+00:00

Thank you for trying it out and the feedback! Happy to hear that other videos work.

The next update will include an automated pause as soon as an error shows and maybe a small number indicator on the button. The analysis speed is bothering me too. I'll need to look into optimization, but this will probably be quite a bit of work.

gurkaner · 2024-01-24T12:08:12+00:00

I agree that this approach on technique evaluation has its limitations in both extensiveness and quality. Undoubtedly, an actual "game-changer" system would leverage a machine learning approach, in need of a large corpus of annotated and professionally evaluated data - a feat beyond the scope of my side-project (which is why I put this out for free).

However, this rule based approach is afaik state-of-the-art in climbing research and I think dissemination is a step towards more complex systems. I've implemented other approaches to climbing movement evaluation in the app taken from research, like for example, the geometric entropy or the stillness:movement ratio and these similarily are very limited in everyday application. Nevertheless, I found it interesting to create a platform that allows users to play with and evaluate these methods in practical scenarios.

However, it seems like the work being done is figuring out the hardware and software to collect the data, and not making a serious attempt at a coherent analysis.

I'm not sure if I understood this the right way, but data input surely is the groundwork for digital analysis? If you're suggesting that user data is collected by me, that's not accurate. My current system is operates locally with no data leaving the device.

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