Moises

What is Moises?

Moises is an AI-based music practice and creation platform designed for musicians, singers, teachers, bands, and producers. It breaks down entire songs into vocal and various instrument stems, and by combining chord detection, an intelligent metronome, speed and pitch adjustment, looping, lyric transcription, setlists, mastering, and AI music generation, it creates a workspace that covers everything from practice to production.

Moises is not just a tool for removing vocals. It places greater emphasis on practicing while listening, creating accompaniments, collaborating during rehearsals, and fostering creativity; it is available for use on Web, Windows, macOS, iOS, iPadOS, Android, as well as as a plugin for DAWs.

AI track separation

Users can upload audio or video files, and the AI will identify elements such as vocals, drums, bass, guitar, piano, keyboards, string instruments, and wind instruments; it is then possible to mute each of these elements individually, play them separately, or adjust their volume. Each stem can be downloaded, and a complete Audio Mix with adjustments for speed, pitch, and mixing can also be exported.

AI separation is not a form of original recording processing. Complex arrangements, reverb effects, distortion, instruments in the same frequency range, and compressed audio sources can lead to cross-talk, phase issues, or a metallic sound.

Officials recommend uploading high-quality files such as WAV or FLAC first.

Price and version comparison

Free version track separation

Free users can choose a 2-track separation, namely Vocals and Instrumental, or a 4-track separation, namely Vocals, Drums, Bass, and Other. Up to 5 tracks can be processed per month, with each file having a maximum duration of 5 minutes.

Changing the separation model of a song is also considered a new processing step.

The free version is suitable for practicing regular songs and testing the quality of separation. The five sessions available do not refer to five exports of Stem files, but rather to five processing tasks.

Repeating attempts with the model will deplete the quota more quickly.

Premium advanced track separation

Premium offers music processing without the limit of five free tracks, and allows unlimited uploads under reasonable usage policies. In addition to the basic stem, options include vocalist and harmony tracks, combined or separated guitar tracks, lead and rhythm guitar tracks, acoustic and electric guitar tracks, piano, keyboard, string instruments, and wind instruments.

With Premium, you can select up to 5 target instruments at a time; those that are not selected will be placed in the Other track. Certain expansion options cannot be used together – for example, the guitar can only be chosen in one of the combinations such as combined, acoustic and electric guitar, or lead and rhythm.

Pro Hi-Fi track separation

All uploads via Pro are processed with Hi-Fi separation; this feature is activated automatically on both web and desktop versions, while on mobile devices it is necessary to select models marked with the Hi-Fi indicator. The output can maintain a resolution of 48kHz and 24-bit, and it is exported as lossless, uncompressed WAV files – ideal for professional mixing, sampling, and pre-release preparation.

Hi-Fi improves resolution and model quality, but it cannot fix issues resulting from low bitrates or clipping on its own. If an MP3 file is uploaded, the resulting WAV file will not restore the information that has already been lost.

Pro drum kits and video/audio stems

Pro allows the drums to be further divided into Kick, Snare, Toms, Hi-Hat, Cymbals, and Other Drums; it can also separate multimedia tracks such as Dialogue, Soundtrack, and Effects. It is suitable for creating drum samples, practice tracks, processing dialogue in films and videos, and as a reference for mixing.

The transient overlap of drum elements and the audio fields in films and videos are highly complex; the results of separating these elements still require checking for cross-talk and any lack of atmosphere. Movies, songs, and samples that are protected by copyright cannot be used commercially just because the track separation has been completed.

Chord detection

Moises can identify the chords of a song in real time, and it offers simple, intermediate, and advanced display levels; the chords update as the music plays. When the key changes, the chords can be transposed to the new key, which facilitates rehearsal for guitarists, pianists, and entire bands.

Complex extended chords, transpositions, fast passing chords, and low-quality live recordings can lead to misidentifications. Professional chord transcription should combine auditory analysis with verification using the actual instrument.

Smart metronome and BPM

Smart Metronome generates a synchronized Click Track based on the rhythm of a song and automatically detects the BPM. The free version of this metronome allows access to only the first minute of a song, while the Premium and Pro versions enable use of the entire song and allow for the export of the beat track separately.

Free tempo, changing time signatures, Rubato, and live performances can lead to variations in the rhythm. It is necessary to check the starting points of measures, the strong beats, and the structure of the song before rehearsing.

Speed variation, tone variation, and looping

Users can slow down or speed up the playback without changing the pitch, and they can also adjust the key of the song to match their voice, the tuning of musical instruments, or the use of a capo. The sections detected by AI can be repeated quickly, while the “Count In” function helps bands get ready before starting to play.

Large changes in speed or pitch can result in a granular sound quality and transient distortions. An exported complete mix will include these adjustments, whereas downloaded separate tracks generally do not contain any changes to the speed or pitch during playback.

Lyric transcription

Moises allows the vocals in a song to be synchronized with the lyrics; the list of supported languages includes English, Spanish, Portuguese, French, and Italian. Users can edit the text, and such changes only affect what is displayed, without altering the original audio.

Lyrics, rhymes, proper nouns, harmonies, and ambiguous singing styles can be easily misidentified. Automatic transcription also does not grant permission to republish the lyrics; any public release of them still requires compliance with copyright regulations.

Moises AI Studio

AI Studio is a context-aware music creation environment that allows users to generate or expand instrument stems based on existing projects, replace certain parts of the audio material, and break down tracks into individual components; the AI-generated results can then be integrated back into multi-track projects for further editing. It focuses on assisting with arrangement and exploration, rather than generating a complete song directly from text.

Each Credit allows for the creation of content lasting 30 seconds; if the duration is less than 30 seconds, it is rounded up to 30 seconds. Users get 60 free Credits per month with the Free plan, 200 Credits per month with the Premium plan, and unlimited Credits under the fair use policy with the Pro plan.

Unused free Credits expire at the end of the month and are used before any additional Credits purchased.

Officially, it is stated that the AI Studio models are trained using high-quality data that comes with full licensing. The generated outputs still need to be checked for similarities, third-party rights, platform rules, and conditions regarding commercial use.

Voice Studio

Voice Studio uses licensed models of real singers for voice conversion, preserving the melody, emotion, and rhythm of the original singing while changing the timbre. The system can recommend suitable models based on the uploaded voice sample.

Both Free and Premium versions allow for testing and using Voice Studio, but the export of complete results is available only with the Pro version. The company states that singers who participate in the creation of these models are compensated through contracts, and the resulting models are authorized for commercial use.

Users must still have the right to input vocals, songs, and accompaniment.

AI Mastering

Moises offers various AI mastering options such as Auto, Advanced, and Reference; these options allow for adjusting volume, EQ, and dynamics, or for referencing the characteristics of a previously completed track. Mastering is used for the final overall optimization of the audio, and it does not replace the process of balancing each individual stem during the mixing stage.

Free, Premium, and Pro versions can all handle master files; the file length limit varies depending on the plan and mode selected. The full set of export options is specified on the current account page.

Mixes that are overly compressed, distorted, or have severe frequency issues cannot be corrected simply by using a one-click master correction tool.

Recordings, videos, and setlists

On mobile devices, it is possible to record videos of performances as well as audio recordings of musical ideas, and to use these for practice alongside songs. Setlist is used to organize the list of songs, plan rehearsals and performance sequences, and it also allows members of a band, students, or collaborators to share work materials together.

Before starting collaboration, it is necessary to determine the scope of sharing and the licensing terms for the materials used. When cloud-based applications are employed for the performance, offline backups as well as traditional Click Track systems should be prepared to prevent any issues with the network or accounts from affecting the event.

Moises usage tutorial

Complete a basic task.

1. Identify the audience, platform, format, duration, and the information that needs to be conveyed;
2. Prepare scripts, shots, or reference materials that can be used in Moises;
3. Select AI track separation to create a low-cost preview;
4. Use the free version to adjust the video, rhythm, subtitles, and audio by splitting tracks;
5. Check each frame for characters, text, logos, lip movements, and factual accuracy;
6. Export in the desired format after confirming the licensing for music, portraits, and materials;

Create reusable professional workflows

1. Create scripts, shot lists, brand assets, and a list of elements that are prohibited from use;
2. Uniform parameters are saved for AI track separation, as well as for the free version of track separation and the Premium advanced version.
3. First, use representative shots to test the model and the quota;
4. Transfer the failed shots to manual editing or regenerate them;
5. Uniformize subtitles, volume, colors, and end credits;
6. Record the version and reviewer before publishing in batches;

File length limit

• Free track separation is limited to 5 minutes per file;
• Premium’s public help documentation supports a duration of up to 20 minutes and offers unlimited uploading;
• The Pro App Store indicates that the maximum duration per session is 180 minutes, but some help pages still show 20 minutes, which suggests that there are differences across various entry points and functions, or that updates are being implemented in stages.
• Therefore, for long-form live content, podcasts, and movie audio, the limit indicated by the target model in the account should be taken as the guiding figure before purchasing Pro – 180 minutes cannot be considered a universal guarantee for all functions and all devices.

Input format

The audio formats listed by the official source include MP3, AC3, AAC, AIFC, OGG, WMA, AIFF, FLAC, and WAV; as for videos, the supported formats are MP4, M4V, MOV, MKV, M4R, M4A, FLV, MPEG, and WebM.

It can be imported from devices, cloud storage, and certain public file addresses.

Moises does not support direct processing of streams from services such as Spotify, Apple Music, Deezer, Tidal, nor of links protected by most social media platforms; users need to upload the actual files for which they have permission to use.

Export format and rules

On mobile devices, MP3 or M4A files can be exported; on the web and desktop versions, MP3 and M4A files can be exported, while Premium and Pro versions also allow WAV file export.

Separated Tracks outputs individual stems without any changes to tempo or pitch; Audio Mix includes adjustments such as muting, volume, speed, and key.

Pro Hi-Fi automatically uses 48kHz, 24-bit WAV format. Before exporting, it is necessary to confirm whether to select a single track, a set of all stem files, a metronome, or the complete mix.

Prices for Premium and Pro

On Moises’ current official website, users are required to log in in order to see the full local pricing; a unified price in dollars is not provided to all visitors. The price may vary depending on the website, App Store, Google Play, region, taxes, and any promotions in effect.

As of the time of verification, in some regions the App Store lists a premium annual subscription at around $29.99 to $39.99, and a Pro annual subscription at around $139.99; however, these are not uniform prices across the world. The tool catalog indicates the pricing options as free, Premium subscription, and Pro subscription, and it is necessary to check the local payment page after logging in before making a purchase.

How to choose between Premium and Pro?

Premium is suitable for practicing the piano, singing, teaching, and creating regular accompaniments; its key features include unlimited uploading, files up to 20 minutes in length, advanced instrument stems, as well as complete chord patterns with options for changing tempo and pitch. Pro is designed for professional production and delivery, offering Hi-Fi quality, drum elements and video stems, export options via Voice Studio, VST plugins, and higher processing priority.

Users who only work with standard 2-track or 4-track arrangements can use Free for now; the need for Pro depends mainly on 48kHz/24-bit format, professional stems, DAW plugins, Voice Studio, and large files.

Stems VST plugin

Pro offers the Moises Stems plugin, which can be installed alongside desktop applications in AU, VST3, and AAX formats; it allows for the export of stems to compatible DAWs so that they can be used in the production process. It is not a completely offline, open-source model – logging in and following the requirements specific to this plugin are still necessary.

For large-scale projects, it is necessary to manage the cache, output paths, and sampling rate, while also preserving the original material. Plugins can simplify the sampling process, but they do not automatically address the copyright issues related to songs and recordings.

Supported platforms

• Web browser application;
• Desktop applications for Windows and macOS;
• iPhone and iPad apps;
• Android phone and tablet apps;
• Pro AU, VST3, and AAX plugins.

Libraries and subscriptions can be accessed across different platforms, but some features and export formats vary. The subscription should be managed and canceled through the same store where it was purchased.

Uninstalling the app will not cancel the renewal.

API and GitHub

For ordinary Moises App users, the official website does not provide any publicly available API keys for routing requests or official SDKs. The Moises API wrappers found on the internet are mostly unofficial projects; it is not advisable to rely on user cookies or reverse engineering techniques to develop production-level services.

Moises also offers a Music.ai platform intended for businesses and developers, but it is not the same product nor follows the same billing structure as the personal version of Moises. The fact that the source code of MoisesDB along with certain project materials are made available on GitHub does not mean that the Moises App, the Hi-Fi models, or AI Studio are open-source.

The status of MoisesDB as an open-source project

The official MoisesDB is an open dataset used for research on music source separation; it includes songs along with their separate stems, and Python code for accessing this data is provided. This dataset comes with its own licensing requirements, and it cannot be assumed that all the audio files can be used commercially indefinitely just because the dataset is available publicly.

The weights for Moises’ core applications, the business separation model, Voice Studio, and the generation models are not made public; the entire product constitutes a proprietary cloud service.

Data and training instructions

Moises’ official website states clearly that it does not use data uploaded by users to train its models, and claims that its AI models are built using materials for which authorization has been obtained. The real singer models in Voice Studio come from participants who have signed contracts and receive compensation.

Users still need to have the permission to upload music, videos, covers, Stem files, and vocals. When dealing with confidential master tapes and client projects, it is necessary to consult the latest privacy policies and contractual requirements.

Ownership and copyright

Official documentation states that users retain ownership of the audio they upload as well as of the outputs created using the tools, but such ownership claims do not eliminate the copyright held by third parties behind those materials. If a commercial song is uploaded, the separated elements such as the vocals, accompaniment, lyrics, and samples still fall under the jurisdiction of their respective original rights holders.

For cover versions, remixes, sampling, and commercial releases, it is necessary to obtain separate licenses for the lyrics, music, recordings, performances, and other elements. Moises cannot be used to bypass streaming protections or to download content for which no permission exists.

Which users is it suitable for?

• Singers and musicians who need accompaniment, key changes, tempo adjustments, and practice in loops;
• Teachers and bands that use chords, a metronome, and a setlist for teaching;
• Extract the Stem, percussion elements, as well as the producers and editors of audio and video content;
• Creators who use AI Studio to expand arrangements and Voice Studio to test singers’ vocal qualities;
• Professional users who wish to coordinate projects across mobile devices, desktop computers, and DAWs.

Product advantages

• Music track separation is closely integrated with practice tools;
• It features complete support for chords, BPM, click track, as well as pitch and tempo changes and looping functions.
• Pro supports 48kHz, 24-bit Hi-Fi, as well as professional drum kits and audio stems for films and videos;
• AI Studio generates editable Stems based on the existing musical context;
• Voice Studio uses models that have been licensed and for which singers are compensated;
• Covers Web, desktop, mobile, and DAW plugins.

Restrictions and Precautions

• The free version allows only 5 processing sessions per month, with files having a maximum duration of 5 minutes;
• The so-called unlimited uploading is subject to the fair use policy.
• Different help pages specify different maximum sizes for Pro long files; it is necessary to check the actual limits associated with your account before making a purchase.
• Errors can occur in AI track separation, chord processing, lyrics handling, and mastering. The core model is not open source, and there is no public API for a personal version.
• Separation and creation do not automatically grant copyright permission for the original music;

Frequently Asked Questions

Is Moises free?

There is a free plan that allows processing of 5 tracks per month; each track can be up to 5 minutes long. It provides support for 2 or 4 audio tracks, as well as features such as partial chords, a metronome, speed adjustment, and access to AI Studio resources.

How much is Moises?

The prices can be viewed after logging in, based on region and distribution channel. In some regions of the App Store, the annual cost for Premium is around 29.99 to 39.99 dollars, while the annual cost for Pro is around 139.99 dollars; these figures are provided for reference only and the actual prices are indicated on the payment page.

What is the difference between Premium and Pro?

Premium focuses on unlimited uploading, 20-minute file limits, advanced Stem features and comprehensive practice tools; Pro adds Hi-Fi quality at 48kHz/24-bit, drum and audio from movies and videos, export options via Voice Studio, VST support, and higher priority handling.

Can Moises generate music?

Yes. AI Studio can generate or expand instrument Stems based on engineering projects;

Free offers 60 Credits per month, Premium provides 200 Credits, while Pro allows unlimited use based on fair usage; each Credit corresponds to 30 seconds.

Does Moises have an API?

The personal version of Moises does not offer any public APIs or official SDKs. Enterprise developers have access to relevant tools through the separate Music.ai platform, while the wrappers available online are mostly unofficial.

Is Moises open source?

The core products are not open source. The official team makes available the MoisesDB research dataset as well as a few repository files, but the commercial separation model, Voice Studio, and AI Studio weights are not made public.