Intended as pedal keyboard solos these organ pieces cover the range C1-F3. The first Étude-Caprice  Scherzando is a bouncy piece in arch form. The declamatory style of the second  Mesto forms a striking contrast: bass and treble registers set out distinct motives as though dialoguing in a play. In the second part of this movement a new motive  tenebroso is developed over a swaying ostinato in…