The practice app for choir singers

Practise your part at home.

Hear your part on its own, sing along with the other voices, then try it solo. The star follows your voice instantly and gives you coach-style feedback after every session.

Android phonesGoogle PlayComing soonApp Store
  • Free
  • No ads
  • Your voice stays on your phone
Koro Yıldızı: flowing notes screen, blue bars are the singer’s notes

Three steps to a part that sticks.

You practise the same song in three different balances.

  1. 1

    Listen

    Your part loud, the other voices soft. Follow the notes.

    Your part%80
    Other voices%20
  2. 2

    Sing along

    Sing with the other voices and feel like you are in the choir.

    Your part%50
    Other voices%50
  3. 3

    Sing solo

    Your part goes silent and you sing it. The star follows your voice.

    Your part%0
    Other voices%70

It detects headphones automatically and works with Bluetooth headphones too.

Koro Yıldızı: real music notation, sung notes turn green

Read the score, see your voice.

Real music notation and instant feedback.

  • Notes you sing correctly turn green

    The notes you hit change colour as you sing, so you see what you nailed straight away.

  • Every session leaves a report

    After each session you get a score and bar-by-bar feedback.

  • The hardest bar opens with one tap

    “Practise this section” takes you straight back to the bar you struggle with.

  • MusicXML
  • PDF
  • Photo of a score
  • 5 languages
  • On-device pitch detection

Choir management for conductors.

Create a choir, invite singers, upload pieces once, set assignments.

Create a choir, invite singers

Invite singers to join with a six-digit code or QR code.

Upload pieces once

MusicXML, a PDF score or a photo of printed music: the app reads the notes and turns them into a song you can practise.

Set assignments, see progress

See each singer’s practice time and average score, listen to recordings and leave written feedback.

Rehearsal and concert calendar

Manage the rehearsal and concert calendar in one place.

Join code482 915Kids Choir

Your voice stays on your phone.

  • While you sing, microphone audio is processed only on your phone.
  • Only recordings you choose to send and practice summaries reach your conductor; recordings are deleted automatically after 30 days.
  • It works without an account; one is only needed to join or create a choir.
  • In kids mode, settings, sharing and joining a choir are behind a parent gate. No birth date, e-mail or phone number is asked for.

Frequently asked

What is Koro Yıldızı?

Koro Yıldızı is a mobile app that helps choir singers practise their own part at home. It plays your part on its own, lets you sing along with the other voices, follows your voice live through the microphone and gives you a score and bar-by-bar feedback. It also includes choir, assignment and rehearsal tools for conductors.

Which score formats does it read?

It reads MusicXML and compressed MusicXML (.mxl), which you can export from MuseScore, Finale or Sibelius. Conductors can also upload a PDF score or a photo of printed music; the app reads the notes and turns them into a song you can practise. PDF scores can be annotated with a pen and highlighter.

Is my voice sent anywhere?

No. While you sing, microphone audio is processed only on your phone. Only recordings you choose to send and practice summaries reach your conductor, and recordings are deleted automatically after 30 days.

Can my child use it?

Yes. Kids mode has flowing notes, stars and a daily goal. Settings, sharing and joining a choir are behind a parent gate, and a parent gives consent when joining a choir. No birth date, e-mail or phone number is asked for.

Do I need an account?

No, it works without one. An account is only needed to join or create a choir. If you want, an account syncs your practice history, settings and score annotations between your phones.

What can I do as a conductor?

Create a choir, invite singers with a six-digit code or QR code, upload pieces once, set assignments, see each singer's practice time and average score, listen to recordings and leave written feedback, and manage the rehearsal and concert calendar.

Which devices does it run on?

iPhone, iPad and Android phones. Once the app is published, the store buttons on this page open its store page.

Which languages does it support?

Turkish, English, German, French and Spanish.

Show up ready for tonight’s rehearsal.

Free and ad-free; your voice stays on your phone.

Android phonesGoogle PlayComing soonApp Store