Schumann or Chopin music app for iPhone and iPad

Robert Schumann, known as Robert Alexander Schumann, (8 June 1810 – 29 July 1856) was a German composer, aesthete and influential music critic. He is regarded as one of the greatest and most representative composers of the Romantic era. Schumann left the study of law to return to music, intending to pursue a career as a virtuoso pianist.
He had been assured by his teacher Friedrich Wieck that he could become the finest pianist in Europe, but a hand injury ended this dream. Schumann then focused his musical energies on composing.
Schumanns published compositions were written exclusively for the piano until 1840; he later composed works for piano and orchestra; many Lieder (songs for voice and piano); four symphonies; an opera; and other orchestral, choral, and chamber works. His writings about music appeared mostly in the Neue Zeitschrift für Musik (New Journal for Music), a Leipzig-based publication which he jointly founded.
*********************************************
Frédéric François Chopin 22 February or 1 March 1810 – 17 October 1849) was a Polish composer, virtuoso pianist, and music teacher of French–Polish parentage. He was one of the great masters of Romantic music and has been called "the poet of the piano".
Chopin was born in Żelazowa Wola, a village in the Duchy of Warsaw. A renowned child-prodigy pianist and composer, he grew up in Warsaw and completed his musical education there.
Following the Russian suppression of the Polish November 1830 Uprising, he settled in Paris as part of the Polish Great Emigration. He supported himself as a composer and piano teacher, giving few public performances. From 1837 to 1847 he carried on a relationship with the French woman writer George Sand. For most of his life, Chopin suffered from poor health; he died in Paris in 1849 at the age of 39.
*********************************************
This app plays 25 musical compositions by the two great composers. It challenges the operator to identify the composer of the playing music. So in addition to enjoying yourself to more than 2 hours of genius music you get to entertain yourself with puzzles.