*Tuning for the cello in this work:

** The "aeolian harp" effect. The r.h. strumming should be precisely on beats indicated; therefore the l.h. must depress keys (silently) slightly before strumming. The strumming should be without pedal (keys are held down), but pedal should be depressed immediately afterward in order that vibrations continue while player silently depresses next chord.