Corus

Corus is the app for Catholic music ministries: it brings together recommended Sunday hymns, liturgical readings, chord charts, and choir coordination—all in one place, eliminating the need to search YouTube, WhatsApp groups, or scattered files.

SUNDAY HYMNS
Based on the readings and the central theme of each celebration, Corus suggests ideal hymns for the key moments of Mass: Entrance, Presentation of the Gifts, Communion, and Dismissal. Each hymn includes its backing track, lyrics, and chords, all on the same screen.

SUNDAY READINGS
Consult the First Reading, Psalm, Second Reading, and Gospel for each Sunday in the Mexican or Spanish Lectionary, depending on which one your parish or diocese uses.

BACKING TRACKS
• Change the key by up to 3 semitones without altering the original track.

• Mute or unmute the demo vocals while practicing.

• Play them online or download them for offline listening: on Mass day, the track will always be ready.

• The active segment is highlighted in real time, without touching the screen.

• Navigate freely: repeat, fast forward, or rewind to any part of the song.

• Programmable fade-out for a smooth, elegant finish.

LYRICS, CHORDS, AND PRACTICE MODE
• Lyrics with chords positioned precisely over the syllables where they are played.

• Transpose the key of the entire chord chart with a single tap.

• Visual fingering diagrams for each guitar chord.

• Practice mode: listen to the reference audio while seeing in real time when to play each chord—ideal for learning a new song before rehearsal.

• Hands-free live mode: the lyrics and chords advance automatically during the service.

ORIGINAL SONGS
Does your ministry have its own repertoire? Add it to your personal library in ChordPro format or from a link, with no limit and completely free. With Corus Pro, you can also upload your own audio track, or an image or PDF of your score, and sync everything across your devices.

SONG OUTLINES
Create a song list for each celebration, whether for your personal use or to share with your choir. Navigate from one song to the next with a tap, and in live mode, Corus automatically advances when each track ends.

CHOIRS: YOUR MINISTRY IN ONE PLACE
Create your choir in seconds and become the administrator. Generate an invitation code and share it with your team: each member who joins gains access to the app's Pro features without paying an individual subscription. With Corus Premium, your choir also has its own shared Song Library (ChordPro, link, image, PDF, or your own audio track) and choir outlines, which sync instantly for the entire team as soon as the administrator or contributors add content.

CUSTOMIZABLE SETTINGS
• Anglo-Saxon notation (C, D, Em…) or Latin notation (Do, Re, Mim…).

• Flats (♭) or sharps (#) for altered notes.

• Light or dark theme, to protect your eyes during rehearsals in low light.

• Download management: view and free up space occupied by your downloaded tracks or files.

PLANS
• Free: complete catalog of lyrics and chords, recommended chants for each Sunday Mass, key changes, Sunday readings, unlimited your own song outlines and chants on this device, and access to choirs with an invitation code.

• Corus Pro: unlimited playback and download of tracks and demos, full practice mode, synchronization of your own song outlines and chants across your devices, and upload of audio, images, or PDFs for your chants.

• Corus Premium: Everything in Corus Pro for every member of your choir, under a single subscription, including shared library and outlines, and member and role management for the administrator.

Get started for free today and lead your choir to every celebration with the best possible performance.