The Estudiantina waltz (or Band of Students Waltz) is a musical arrangement, made in 1883, by Émile Waldteufel, his Opus 191, No.
Its melody was composed earlier in 1881 by Paul Lacôme, with lyrics by Julien de Lau Lusignan.
And in Germany the main melody is very popular because of a song called "Spaniens Gitarren" sung by the singers Cindy & Bert in 4/4 time which was a great hit for them in 1974.
The final section is back in G major, this time a quieter part than the previous sections, rounded up by an ebullient chorded phrase.
After a brief reprise of the second section melody in a different key, the refrain is repeated again and the waltz ends on a high-spirited note.