One Man Band is a virtual arranger keyboard that enables you to play the thousands of styles in Yamaha format that are available on internet. Creating your own styles is also possible, by loading a midi-file or recording each track separately.A midi keyboard is recommendable but not required.There are two different user interfaces. The MIDI-keyboard interface enables you to play melody, chords, trigger variations and control all functions using your MIDI keyboard, without having to touch the PC-keyboard or mouse.There is also a PC-keyboard interface available.The features include:Realtime auto-accompaniment with chord-recognition for all chord types.Realtime auto-harmony.Load, play, edit and save styles in the Yamaha format. (1000 free available)Enter commands for variation, tempo and volume changes, loading styles etc. from the MIDI-keyboard.On-screen display of the (adjustable) functions of the keys.Save MIDI-files of your realtime performances.A song window for non-realtime arrangements and MIDI-file creation.Load MIDI-files and paste them into styles.Record style tracks played on your MIDI keyboard.Save all the presets for a song in a songfile.Editing of all style parameters.Create auto-harmony multi-voices for melody playing.