AutoBandStudio is an AI-powered composition and auto accompaniment generator designed for music creation. The application automatically creates chord accompaniment, drums, bass, and guitar parts that match your melody using artificial intelligence technology.

Key features include AI auto accompaniment generation that analyzes your input melody to automatically generate natural chord progressions. The drum auto generation creates patterns for various genres like pop, ballad, and rock, with direct editing capabilities allowing users to click to add/delete notes and drag to edit multiple notes. Bass and guitar auto generation creates bass lines and guitar accompaniment based on predicted chords, with guitar supporting four patterns: whole note, half note, quarter note, and arpeggio. Users can generate accompaniment for specific sections by selecting notes, preserving existing accompaniment for easy partial editing.

The application features an intuitive piano roll editor where users click to input notes, drag to select multiple notes, and drag the right edge to adjust length, with zoom functionality using Ctrl + mouse wheel (0.25x ~ 4.0x). Project save/load functionality is available for Pro users to save projects as .abs files. Additional features include per-track volume control for melody, accompaniment, drums, bass, and guitar; BPM control ranging from 40~240; various instruments including piano, electric piano, classical guitar, and electric guitar; flexible playback options with speed adjustment from 0.25x to 4.0x and volume/mute/solo per track control; file compatibility for importing/exporting MIDI files and saving as WAV audio files; and convenient shortcuts including Ctrl+Z (undo), Ctrl+A (select all), Ctrl+C/V (copy/paste), Delete, and Shift (sustain).

The Pro subscription unlocks project save/load functionality, unlimited audio/MIDI export, and commercial use allowance. Free users can access all generation features with audio/MIDI export available three times per week.

AutoBandStudio is perfect for music beginners using composition software for the first time, anyone wanting to create their own songs or ringtones, content creators making YouTube BGM or vlog music, those needing to quickly create demo tracks or beats, and users interested in MIDI-based composition and arrangement. The application is available as a Windows desktop application requiring Windows 10 version 17763.0 or higher.