Cantai isn’t just another sound library—it’s a breakthrough in vocal synthesis. Powered by advanced machine learning, Cantai captures the subtlety of real human singing, from delicate dynamics to expressive phrasing. Whether you’re writing an intimate solo aria, a soaring choral passage, or a dramatic operatic scene, Cantai delivers voices that sound authentic, emotional, and true to your score. Note: Cantai's voice quality is continually improving, and the refined production versions featured in our online demos will be available soon.

Also included in

MuseSounds Pro

Premium sound libraries for modern scoring inside MuseScore Studio.

Previews

What’s New?

1.0.1

- NEW voices added - Updated menu structure for easier navigation - Improved rendering efficiency and performance NOTE to current users: The new menu structure supports a growing number of voices. As a result, existing scores will need Cantai voices reassigned the next time they are opened. This is a one-time occurrence that shouldn’t be required with future releases.

Description

Cantai isn’t just another sound library—it’s a breakthrough in vocal synthesis. Powered by advanced machine learning and fully integrated into MuseScore Studio, Cantai not only captures the subtlety of real human singing, from delicate dynamics to expressive phrasing, but also sings your lyrics with clarity and emotion. Whether you’re writing an intimate solo aria, a soaring choral passage, or a dramatic operatic scene, Cantai delivers voices that sound authentic, expressive, and true to your score. Cantai is available through subscription and includes Solo Soprano, Alto, Tenor, and Bass voices, as well as full choir ensembles. Rendering is managed intelligently to ensure optimal performance and system availability. Usage Note: Cantai includes up to 180 minutes of rendering time per week, which resets every Monday. Because Cantai renders automatically as you write, your minutes can be used up quickly. Previously rendered sections will still play back even after the limit is reached. To conserve minutes, switch to manual rendering using the steps here: https://handbook.musescore.org/sound-and-playback/musesounds/online-sounds

Voice modeling library integrated into notation
English and Latin lyric support with more languages supported soon
Seamless integrated with MuseScore Studio and Muse Hub
Realistic phrasing and dynamic expression
Natural breath handling and syllable shaping
Includes Choir and Solo soprano, alto, tenor and bass

1.0.1

I highly appreciate how easily it generates very realistic vocals. I'm giving it a high rating to show my support for future development. I'll mention three points I'd like to see improved. First, I'd like the ability to control where breaths are placed. Currently, even if a breath mark is on the sheet music, it sings without pausing for breath regardless. It would be better if it either automatically pauses for breath or allows me to specify the breath position myself. Second, I'd like the ability to control singing techniques like vibrato depth. Especially when creating sources for early music, contemporary music, or educational purposes, excessive vibrato can be distracting. It would be good to specify singing techniques in addition to the singer. Third, regarding the unnatural timbre changes accompanying dynamic shifts. Currently, even when transitioning from fortissimo to pianissimo, the timbre remains unchanged—the sound simply gets quieter as if someone turned down a volume knob. This feels very unnatural and inhuman. I'd like the timbre and singing style to change naturally when dynamics shift. Overall, it feels like all options have been sacrificed for ease of use. Technically, I believe this is entirely feasible, so I look forward to future development.

rundown-spoonbill284

1.0.1

Let me start with a summary by saying I'm glad I have this available, but there is a lot that could be improved. The simple fact that I can now hear my works with the words sung instead of choir "Ah"'s is wonderful. Having said that, the choir "Ahs" of MuseSounds are much more pleasing and choir sounding than the choir voices of Cantai. The Cantai "choir" reminds me of the background vocals from commercials or back from the crooner days, except not as good. Since my main medium is choral music, this is disappointing. It sounds like the choir is a collection of the solo voices, most of which are weak and very AI-ish (especially the male voices). Unless you are going for the untrained high school voice sound or a wanabe Karaoke sound, you don't hear "Choir" with these voices.. I would think you all would have the means to create the pleasing "As one voice" sound that the Musesound voices have. There are a few decent solo voices, which makes me wonder why the others are so weak. Although less frequent than with ACE Studio, I have to re-spell some words in order for them to be pronounced correctly. Given the complexities of the English language, that is understandable.

Treble Cross

1.0.1

Please increase the processing speed!!! I keep it on maual processing, otherwise it would drive me crazy. I like the realism of the voices, although alot of them are too stylized. There also need to be a true bass and alto, instead of just baritone and mezzo soprano.

Old Amatuer

1.0.1

takes forever to process then crashes my musescore. doesn't save after the crash. come on guys im tryna write some bangers here

nonstop-hyena672

I really like the choir voices overall. The soloists are hit or miss.

gleek4ever

1.0.1

Probably the only positive outcome of machine learning technology! I have used this for my students who have little experience before a concert as an aural guide. Thanks for this! I wish it could be a single time fee, like the other major notation software, but I will take what I can get!

anymous

1.0.1

The update brings new solo voices compared to 1.0.0. However, the new voices don't sync up in time with the original voices. So in a SATB setting, new voices and old voices are not compatible. I hope this can be fixed quickly as it does affect the functionality. For record, the original voices that are in sync are: Lucia (Soprano), Karolyn (Mezzo), Giovanni Opera (Tenor), Rigoletto (Baritone) Edit: Hi Cantai team, there is a misunderstanding in the response given. I am not talking about menus and reassigning, I am referring to the actual time words are being sung by the various voices. The new and old voices are off by around 200 milliseconds, which causes a real mess when played back together in an SATB setting.

gaseous-fly87

1.0.1

All of these voices are gorgeous! I find myself using them a lot for dramatic or thematic orchestral works. The sound quality is tip top, but there are a few bugs I must work around. One is sometimes the lyrics I type don't match the sound, so I have to artificially get it to resync by removing a word, then readding it, or sometimes I must just remove the word entirely. Also, for a song one of the main words was "Tears" but it registered it as the "tear something apart" one. It would also be very useful to control some of the sounds. For instance, in a song the singer at the end of a dramatic high note kind of did a glissando squeak up, which sounded perfect, but the next time it synced it got rid of it. Just a few things to keep in mind, it's overall a great product and I'm excited to see the future updates! --Edit-- That all said, the Men and Women choir sound very unrealistic and harsh. I think what you tried to do was combine and meld already recorded solo voices into a choir, and that never works. I would highly recommend you record a real choir. I know its expensive, but a real 50-person choir would be awesome and it would easily take a spot in my orchestral palette. Thanks!

Fantasy Legend

1.0.0

As a choir director, this is awesome. I'm just a bit bothered by the fact that Latin text is sung with English pronunciation. And I'm curious to know when will we be able to have Italian and German pronunciation? As almost 80% of the Western choral and solo Voice repertoire is in Italian or in German. Or even in French

Beezart73

1.0.0

I've been waiting for this for awhile, so it's awesome that it's finally hear. I write hymns and score public domain hymns to make them singable, and this helps tremendously. It is so much better than the old "oohs" and "aahs". A few issues/features that I hope will be addressed: 1.) I wish I had the ability to have the program select which verse I want it to sing. As it is, I have to score the music. Put in the lyrics for verse 1. Export the mp3. Delete the lyrics and put in the lyrics for verse 2 and rinse and repeat. It's doable, but a pain. 2.) I hope the program does a better job of singing shortened words. It really struggles with heav'n, and forgiv'n for example in the score I'm currently working on. It seems like when it doesn't know what to do, it just gives sings basically "aahs". This is really annoying as one can probably guess how often words like this show up in hymns :) Regardless, thumbs up for the program. I know it's a work in progress and progress will be made. Thanks!

miniature-corgi566
Works With
MuseScore Studio
Rating
72%
Version
1.0.1
Released
2026

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