Moises positions itself as a premier AI-powered audio separation tool that enables musicians to isolate and manipulate individual song components. The application utilizes machine learning algorithms to separate tracks into discrete stems including vocals, drums, bass, and other instruments with notable precision. This capability transforms how musicians interact with existing recordings for practice, remixing, and educational purposes. The core functionality centers around its stem separation engine, which processes audio files through cloud-based AI analysis. Users can upload tracks from their library or web sources, after which the application generates isolated tracks within minutes. Additional features include key transposition capabilities allowing musicians to adjust songs to their preferred tonality, tempo modification without pitch alteration, chord detection algorithms that analyze harmonic content, and a built-in metronome for practice synchronization. The smart mixer enables blending of separated tracks with customizable levels. User experience demonstrates a streamlined interface with clear processing indicators and intuitive controls for adjusting separation parameters. The application maintains professional-grade audio processing while remaining accessible to casual users. Real-world usage patterns show musicians primarily utilizing the vocal removal for karaoke-style performances, instrumental isolation for practice sessions, and tempo adjustment for learning complex passages. The chord detection feature assists with song learning and transcription workflows. User feedback consistently praises the audio separation quality, with Aleen AA noting on August 2, 2025 that 'the separation between the music and the voice is great.' Vivian V. Vagary's August 1, 2025 review acknowledges the 'really cool' instrumental features while questioning chord detection accuracy. Multiple reviews mention frustration with the free tier's monthly song limit that doesn't roll over, indicating potential monetization friction points for casual users. The application demonstrates strongest performance in vocal isolation and tempo manipulation, though some users note occasional artifacts in complex musical passages. The subscription model provides unlimited processing for professional users while the free tier serves as an effective trial. Ideal use cases include music educators creating practice tracks, cover musicians preparing performances, and producers seeking quick stem extraction for sampling purposes without advanced DAW software.