Real-time Style Performer is described as 'The Real-time Style Performer (RSP) gives you the ability to play musical styles created for Yamaha PSR musical instruments through a PC sound card' and is an app in the Audio & Music category. There are seven alternatives to Real-time Style Performer for Windows, Online / Web-based and Self-Hosted solutions. The best alternative is Sharp11, which is both free and Open Source. Other great apps like Real-time Style Performer are Accompaniment Machine (Paid), VArranger (Paid), Live-Styler (Paid) and One Man Band (Paid).
Sharp11 is an npm module for performing music theory operations, ranging from simple things like transposing a note to complicated things like generating an ordered list of scales that can be played over a given chord.
The Live-Styler is a fully equipped, software based computer organ. With it you can optionally operate 3 top manuals, 2 middle manuals, 2 low manuals and 1 bass pedal. The Live-Styler includes a complete automatic accompaniment.
Transforms all (piano, synthesizer) keyboards into arranger keyboards with real time chords recognition! Creates complete MIDI music-arrangements with just simple drag and drop operations! Utilises, modifies and creates styles in Yamaha format!.
FreePlay is a true software based music accompaniment program that provides the same features and capabilities as an arranger keyboard. It works with any MIDI compatible music keyboard and sound module.