The Piano Sonata No. 1 in F♯ minor, Op. 11, was composed by Robert Schumann from 1833 to 1835. He published it anonymously as "Pianoforte Sonata, dedicated to Clara by Florestan and Eusebius".
Eric Frederick Jensen describes the sonata as 'the most unconventional and the most intriguing' of Schumann's piano sonatas due to its unusual structure. The Aria is based on his earlier Lied setting, "An Anna" or "Nicht im Thale".
The four movements are as follows:
- Eric Frederick Jensen (13 February 2012). Schumann. Oxford University Press. pp. 21–5. ISBN 978-0-19-983195-1.
- Thomas Schmidt-Beste (10 March 2011). The Sonata. Cambridge University Press. pp. 150–1. ISBN 978-0-521-76254-0.
- John Daverio (10 April 1997). Robert Schumann: Herald of a "New Poetic Age". Oxford University Press. pp. 144–7. ISBN 978-0-19-802521-4.