Introduction

Cantamus is a prototype application to assist choir singers of any musical expertise in individual study or rehearsal. This prototype is being developed by Voctro Labs within the TROMPA project, under the EU's Horizon 2020 research and innovation programme, grant agreement No 770376.

This is an alpha version that we want to share with potentially interested users who can experiment with it to identify margins for improvement and detect possible errors. It is therefore a version that integrates most of the functionalities of what will be the final application but has some limitations and instabilities. The current catalog of sheet music in the app is limited to control testing, but using synthetic voices will allow this catalog to be extended to hundreds of pieces, as well as allowing users to add their own.

Basic functionality - demo video

https://www.youtube.com/watch?v=udthMYWwcE8

What do I need to use it?

• A computer or tablet
  • In the case of using an Android computer or tablet, Chrome browser with a recent version.
  • In the case of using iPad, iOS 11 or later.
• If you wish to record your voice, you also need:
  • A microphone (a microphone that is integrated in laptops or tablets is good enough)
  • Headphones (so that your voice can be recorded without any interference from the other voices that are playing)

<aside> ❗ It is possible that the browser will request permission to access the device microphone. It is important to allow this use. The application will use the microphone exclusively during the recording time to allow analyzing and listening to the performance.

</aside>

• To enter, you must enter the email and password of each user who has registered. Each user (email) is associated with a choir. (In the testing phase within the TROMPA project, the list of registered users is managed by the direction of the participating choir).

What can I do with it?

The main functionalities of Cantamus are:

• Select from several pieces in a repertoire or upload a new custom score (conductor-only)
• Visualize the pieces with two visualization modes: score and piano roll.
• Listen to the piece (or a fragment) with synthetic voices, controlling the volume and panning of each of the voices. The visualisation (score or piano roll) follows the music.
• Select one of the voices in the score. This highlights the selected voice on the visualisation.