Good idea for discussion Carpy, and great to see Arvo Pärt on your list.
Anything by Dustin O'Halloran, especially his 2nd album 'Piano Solos Volume 2' & also 'Lumiere'.
Nils Frahm, especially his 'Screws' album (so called due to his falling from a bunk bed and breaking his right-hand wrist, requiring screws to heal it, becoming frustrated at not being able to play with both hands, he composed & recorded this album solely with his left hand - genius)
Hauschka, master proponent of the 'prepared piano' (household items, i.e. beer bottle lids, fixed to certain wires inside the piano) especially 'Ferndorf', 'Foreign Landscapes' or 'Small Pieces'.
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