Does anybody know if it is possible to create a user style out of 2 different existing styles (e.g. Ballad on variations A and B, Rock`n Roll on variations C and D) without using a computer program ? If not, is there a computer program where this can be simply done ?

Yes you can from Edit Pattern of Audya.... Select a User style that you want.

Press EDIT to open Edit Pattern, and if you want to modify this style, or make a NEW STYLE from User 3/8... If you want NEW STYLE after make it, give a name with Keyboards, and press Exit...

Select now again the new style that you have make....
Select a Variation that you want copy, for example VARIATION 1, press F9 (Copy), press F4 to select from any User or preset style the part that want, press EXECUTE to copy....

Play and try if it's ok and press Save.... Your style is ready....

To create a new style, you must first of all access the PATERN EDITOR (by pressing the USER STYLE button, select any styles (using F1-F10) and press EDIT. Preferably, select a style which is already close to what you want to create.

* F1 should display ARR.A, F2 - PARAMETER, F3-MAJOR ... etc.
From this screen you have 2 options - either continue to modify the current style (by copying parts of other styles into this one and later save with a new NAME thus creating a new style), or create an entirely new style by pressing NEW STYLE U3/8.

* Press COPY (F9) and you will see the style to COPY parts from (LEFT COLUMN) and the style (yours) to COPY parts to (RIGHT COLUMN).

* Press F2 to highlight the Arranger Part (A, B...) from whom you want to copy a part or GLOBAL.

* Press F7 to highlight the Arranger part (A, B..) to which you want to copy a part or GLOBAL.

* Press F4 to select the style from which you want to copy parts. The style display page will be shown and you can use F1-F10 to select your style. After selection, AUDYA will return you to the PATTERN EDITOR page.

* F5 displays the name of the style you are copying FROM while F10 dispays the name of the style (yours) you are copying to and since you are already in the style,F2, F9 and F10 are not active in this mode.

* Press EXECUTE (U5/10) to COPY.. When done, press EXIT (U1/6) to get back to the PATTERN EDITOR MAIN PAGE.

* Test and repeat and when done, simply press SAVE and give it a new name with the keyboard.

This should do it ... same as what Sokratis 1974 mentioned above - just with a little more details!

I found finally out how to integrate external styles in the user styles. It is necessary to copy them (e.g. via PC)into the existing folders. Then when you have pressed the USER STYLE button you can choose the new styles out of the user styles in the different styles banks very easily. Combining styles is no problem then when following AJS instructions.