> \let\Test\fontstylesuffix

> a bit different output

Thank you Hans.

> The command \mathgreekitalic can only be used in math mode, when you want a italic alpha in text mode you need a font which has greek characters (e.g. Gentium).

Okay Wolfgang, I thought Latin Modern also had greek characters, but apparently not. So in math mode which font is used by default if it is not Latin Modern greek?