# Generate random melody along a given chord progression?

I'm looking for a music software that is able to compose (random) solo melodies along a given chord progression using corresponding scales.

The Mac software suggested by VAlexander looks very interesting and is certainly worth mentioning for future readers. Unfortunately, in my case it's the wrong platform. I forgot to mention that I am looking for a Windows, Linux, Android or web-based application or alternatively a java library.

It does not require a full-feature music sequencer. A smart little tool would be totally sufficient.

The tool that I've found and described in my answer provides reasonable results, but I am still very interested in software, that addresses the same task with alternative concepts. I leave the question open therefore.

The output should be in MIDI format.

I have found the dinosaur: Impro-Visor. Here are my first experiences:

### 1. Setup

• be sure to have a 32-bit Java VM at hand; to avoid undesirable interaction with my previous installation, I used a Portable JRE

• to get rid of the Metal Look and Feel, you can add a line to impro-visor.vmoptions:

-Dswing.defaultlaf=com.sun.java.swing.plaf.windows.WindowsLookAndFeel


### 2. Entering chord progression

• Impro-Visor has a handy quick input field, which shortcuts the whole clicking, selecting, pressing magic correction key combination process:

• to change the chords later, there is a source code editor:

• Basic settings about the accompaniment (style, instrument, volume) can be changed in the Preferences dialog:

### 3. Creating Melodies

• Now we select the part, we need a melody for and launch the lick generator from the menu:

(Just for reassurance: the "Abstract melody" part shown, has not to be typed in)

• melody and rhythm can be alternated independently
• you can define the propability for whether a note is selected from the chord or the scale
• pitch and intervals can be limited
• etc.
• After some fiddling with the generator's grammar, here is a first result:

### Drawbacks

• Impro-Visor mainly targets jazz improvisation, which is reflected in the available styles
• the GUI is a bit old-fashioned

At the first impression, the program looks quite useful. It offers significant opportunities, but significant learning curves as well.