I have the book Mein Heimatland for some 10 years, its the one with the arrangements for accordion by Willi Drahts and Wilhelm Lutz.
Its this one:
http://www.schott-music.com/shop/1/show,37860.html
Mein Heimatland. Die schönsten Volks-, Wander-, Trink- und Scherzlieder
A4-format
192 pages, about 180 folksongs.
I think there might be a misunderstanding , its not the march mein Meimatland, but the title of this collection.
The version I have has the full traditional staff notation for melody and for bass line, + chord symbols, and texts of the folk songs.
A lot of good arrangements for 20 euro, well worth the money in my opinion.
The book is a top seller, proof is the many Other editions for all sorts of instruments or voice:
ED 2223 = Violine
ED 2666 = Akkordeon
ED 2222-10 = Textbuch
ED 6636 = E-Orgel
ED 5000 = Melodie-Ausgabe
ED 2222 = Klavier
ED 5186 = Violoncello/Posaune
ED 6742 = Trompete (Klarinette)
ED 4060 = Diatonische Handharmonika
But if you only want the melody+chords, youll find a lot for free on the link mentioned above and here:
http://www.lieder-archiv.de/