Complete Rhythm Trainer vs Interactive Music Theory Lab

Complete Rhythm Trainer teaches users to read, recognize, tap, and write rhythms through progressive drills. Its 252 exercises are arranged across four levels and 30 chapters, including imitation, reading, dictation, and two-voice reading and dictation. Practice covers simple, compound, and asymmetric time signatures, as well as rhythmic values such as thirty-second notes, triplets, quintuplets, and swing eighths. The app includes 23 instrument sound banks made from recorded sounds, including piano, guitar, pizzicato violin, and percussion instruments. Users can create and save custom drills and build training programs to invite friends or students. Teacher and school features include classes, leaderboards, custom programs, app customization, and progress tracking; class programs can have up to 20 chapters and 20 drills per chapter. The first chapter of each mode is free. A one-time mobile unlock costs 6.99 USD; a Complete Music Trainer subscription costs €0.99 a month with a seven-day free trial and includes two other trainer apps. Lifetime access to the three-app bundle costs 19.99 EUR once. It runs on Android, iOS, web, Windows, and macOS.

Interactive Music Theory Lab is a free web app for learning and applying music theory. Chord Lab offers an interactive chord builder, chord library, piano keyboard, staff notation, voicings, and inversions. Scale Explorer covers more than 100 scales and maps their patterns on piano and fretboard. Theory Academy provides interactive lessons, guided tutorials, exercises, and subjects ranging from intervals to voice leading. Composition Studio lets users arrange progressions and song sections by drag and drop, receive theory-based suggestions, and export MIDI or PDF. The interface also lists MIDI and MusicXML import and export, along with PDF and audio export. Users can upload MP3, WAV, OGG, M4A, or FLAC files for chord-progression detection; clear recordings work better than complex mixes. The service requires no account and includes progress tracking. It offers guidance rather than writing songs for users, and the maker notes that bugs exist.