The sheet music by Ferdinand Kollmaneck (11.2.1871 Wien – 13.7.1941 Leipzig) is in the Public Domain since the beginning of this year. Kollmaneck was a zither player and composer who has composed pieces for mandolin orchestra and has published arrangements for mandolin orchestras in his publishing company Hella in Leipzig.
I own several pieces composed or arranged by Kollmaneck and have begun to make scans and upload those to my website.
The first two little pieces are the march from the opera Fidelio by Ludwig van Beethoven and a piece for glockenspiel and mandolin orchestra by Kollmaneck that have been published in 1923.
Marsch from the opera Fidelio by Ludwig van Beethoven.
I have found the following version of this march for piano four hands, an arrangement by Zemlinsky:
Marsch aus Fidelio
The second example is the scene that comes before the march from a performance of Fidelio at the Metropolitan Opera in 2000 – the march begins at ca. 7:24:
Fidelio, Act 1.3 – “Gut, Söhnchen, gut,” Marsch
From a 2000 production of Beethoven’s Fidelio at the Met. Karita Mattila (Leonore), Jennifer Welch-Babidge (Marzelline), René Pape (Rocco). Jürgen Flimm, production; James Levine, conductor.
The second piece has the title “Die Spieldose” (The Music Box) and is a composition for glockenspiel and mandolin orchestra which might be interesting for a beginners orchestra:
Informationen about Ferdinand Kollmaneck from http://www.zitherinthecity.com/site/zi_wrmusiker.htm
Ferdinand Kollmaneck (11.2.1871 Wien – 13.7.1941 Leipzig)
Zitherspieler (»Wiener Secessionsensemble« gemeinsam mit Eduard Nikl, Anton Smetak, Leonie Scholz-Krauskopf, Josephine Novy und Ludwig Zboril), Erfinder der »Ideal-Reformzither« , Komponist (auch zahlreiche Chor- und Orchesterwerke), Dirigent, Lehrer, Autor einer zweibändigen Zitherschule, Inhaber einer Zitherschule, Herausgeber der Zeitschrift »Chronik der Volksmusik« , Musikverleger (Musikverlag »Hella« )
Free sheet music by Ludwig van Beethoven – Fidelio – at IMSLP: http://imslp.org/wiki/Fidelio,_Op.72_%28Beethoven,_Ludwig_van%29
There you can also find an arrangement of the march by Beethoven for two pianos eight hands.