MIDI Auto-Accompaniment Systems


Would you like to turn your computer into an "Entertainer Keyboard" and to ...

  • make professional music with your computer or a simple MIDI controller actively ? - (Audio & video clips)
  • let a software "compose" tasteful tracks for practicing, video clips or presentations (RMCA Pro, Jam partner) ?   
  • use a chord progressions random generator with many options to get musical ideas (RMCA Pro, Jam partner)  ?
  • practice guitar or bass and be accompanied by a backing band with countless songs (RMCA Pro, Jam partner) ?
  • process thousands of additional high-quality styles ? (RMCA Pro, Jam partner) -  Learn more ...
  • create your own styles from MIDI files or virtually any MIDI input (RMCA Pro) ?
  • turn your MIDI controller or your computer into a full-featured MIDI arranger keyboard ?
  • use an alternate MIDI auto-accompaniment with 16 "fingered" and 10 "two-finger" chord types ?
  • use an auto-accompaniment for less than US$ 7.00 (only MAAS) ?

Download Manager for XDigits MIDI software ... 

Instead of using the download links at the top right, it is very handy to use the "XDigits Donwload Manager" to download, install and test the MIDI programs, as well as to delete them without leaving any traces. The manager named "xdmanager.exe" (a single executable file of only 305 KB) can be loaded into any directory of your hard disk or USB stick and started by double-clicking. 

Simply select the software product and determine the installation path, whereby you should use the recommended paths, so that you can also execute the programs in the future without additional effort or remove them completely. That's all.

Download manager as .exe file       Download manager as .zip file

If you want to check the "XDigits Download Manager" for viruses first (recommended), please copy this link http://www.xdigits.com/xdmanager.exe and paste it into the URL line of the virus checker.

Start VirusTotal

Video example ...

Here is an example of how RMCA Pro was used to compose
background music for a short slide video and the lead guitar.

Download RMCA Realtime MIDI Chord Arranger Pro (updated and enhanced in 2016-2019)
Download Portable RMCA Pro (updated and enhanced in 2016-2019)
Download Jam partner (updated and enhanced in 2016-2019)
Download MIDI Auto Accompaniment Section (updated in 2016/2017)
Download Instrument List Editor - the freeware add-on

 RMCA Pro audio & video clips 

RMCA Pro, Jam partner and MAAS are particularly suitable for creating
backing tracks in a few minutes and jamming along to them.

Example 1 Ballad in Bb-major/G-minor   -   RMCA Pro + Guitar Modeling (recorded live in 2015, MP3)


Example 2:  Blues/Rock in Bb-major   -   RMCA Pro + Guitar Synth & Modeling (recorded live in 2015, MP3)


Example 3:  Slow Blues in A-minor   -   RMCA Pro + Guitar Synth & Modeling (recorded live in 2015, MP3)


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