### Clue: Schumann's opening surprisingly lofty for piano (6)
### Answer: SOFTLY 
 ### Explanation: Definition: piano
 **1st letter of**(…'s opening) "Schumann" + **anagram of**(surprisingly) LOFTY.
Defn: …, the musical direction of play softly.
And, of course, Robert Schumann was a composer and pianist.