Stackapella and CyberBass and Choralia
As of November 2026
CyberBass and Choralia are free websites of practice tracks for choral works, with your own part brought forward. Stackapella teaches the parts of shorter songs by ear and listens as you sing.
Who each is for
CyberBass and Choralia are for
- Choir singers learning a major choral work, like a requiem.
- Free practice tracks, with no account (Choralia's licence asks users for a donation).
- Your part louder, or on its own with a click (Choralia).
Stackapella is for
- Feedback on your pitch as you sing your part.
- Free courses, from your first note to four-part harmony.
- Recording every part yourself, and your own songs.
Side by side
| CyberBass | Choralia | Stackapella | |
|---|---|---|---|
| Where it runs | Web1 | Web: listen, or download MP3s5 | In any modern browser, on phones and computers. It installs like an app; there's no app-store app yet |
| Price | Free online. CDs and MP3 downloads for sale23 | Free. Its licence asks for a donation, often 5 to 50 euros a work56 | Free to learn. Plus is $4.99 a month or $39.99 a year |
| Learn a part by ear, with live pitch feedback | By ear: your part with the others quieter, with a speed control and an A-B loop. Live pitch feedback: not stated14 | By ear: your part with a click, or louder in the mix. Live pitch feedback: not stated5 | Yes: hear each part from a guide voice, then sing it while your notes light up as you hit them |
| Record your own parts, stacked in time | Not stated | Not stated | Yes: record each part over the ones before, lined up in time |
| Harmony parts suggested for your own tune | Not stated | Not stated | Yes: sing or hum a tune, and alto, tenor and bass are suggested to fit it |
| A course from first note to harmony | Not stated | Not stated | Yes: free courses, from your first note to four-part harmony, and on skills and styles |
| Choir tools | Not stated. Choirs are encouraged to link to it2 | Not stated. Choirs may share the files under its licence6 | Choir groups and practice tracks |
| Bring in sheet music (MusicXML or MIDI) | Not stated | Not stated | Not yet: sing or hum a tune, write it in the note editor, or open a Stackapella file |
| Languages | Not stated | Its site is in 4 languages5 | English |
| Open source | Not stated | Not stated | Yes, under the Attribution Assurance License |
"Not stated" means we couldn't find it in the product's own listing or website, not that it's missing.
Where each fits better
Where CyberBass and Choralia fits better
- You're learning a large choral work your choir is singing.
- You want free tracks with no account.
Where Stackapella fits better
- You want feedback on your pitch as you learn.
- You want a course that teaches harmony from the first note.
- You want to record every part yourself.
Questions
Does Stackapella have major choral works?
Not as a catalogue: its library is shorter public-domain songs, and a director can write the choir's own songs in the note editor and share them with the group.
Do I need an account?
Not to start: lesson 1 of any course works without one. A free account opens the rest and keeps your songs and progress safe across your devices.
Is Stackapella free?
Yes: every course and every song in the library, with a free account, and unlimited workouts, your history, singing with friends and choir groups. Plus, for $4.99 a month or $39.99 a year, adds more storage, MP3 and stems, and unlimited private arrangements.
Try Stackapella
Start with your comfortable note. No account needed, and every course is free.
Sources
Seen 2 November 2026, on each product's own listing or website.
- CyberBass FAQ
- CyberBass, supporting it
- CyberBass CDs
- CyberBass player
- choralia.net
- Choralia FAQ and contacts
- CyberBass home
- CyberBass Major Works
- Choralia MP3 catalogue
Product names belong to their owners. Stackapella isn't connected with any of these products or their makers.