I wouldn't say the above songs are not popular in Germany. Rather, they all have their time and place. 'Mein Vater war...', 'Lorelei', 'Du Du liegst mir im Herzen' and 'Die Gedanken sind frei' are probably not sung very often any more (though I will sometimes sing the latter to myself) and seem outdated to many people. Of the ones Jeanie mentions, 'In Muenchen steht...' is particular to Bavaria and only sung elsewhere once alcohol levels have risen sufficiently. You don't hear 'Ein Prosit' very often nowadays (thanks, Jeanie, for reassuring me - I thought there was only the one line, but then I might have missed something over the last 4o years ...). The last two are, like many others (e.g. 'Es war einmal ein treuer Husar' and 'So ein Tag so wunderschoen wie heute' - probably the most famous of them all), products of the Rhineland 'Karneval' celebrations, and as synthetic as most of the 'volkstuemliche Musik' discussed in another thread recently. They may be played but hardly ever sung outside Karneval as the lyrics evoke a faux 'Gemuetlichkeit' that doesn't normally fit elsewhere.