I have no idea about German pronunciation. It's pronounced as Gül in the song Gülpembe.I know it should be 'Fatmagül', but anyway.
I am trying to figure out the last syllable.
Ok, it is not like the German -gül. Or the English 'gool'.
Is it like the German 'gil'?
Or something else?
I agree, Turkish and German ü (and Hungarian for that matter) sound the same to me, too. It is this sound:Özgür wasn't suggesting a translation for the name. Google Translate has a pronunciation feature.
In any case, I don't know where you heard fatmagül but the Turkish ü and the German ü sound the same to me.